2012-2018 Jeep JK 8 speed swap.

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  • เผยแพร่เมื่อ 19 ธ.ค. 2024

ความคิดเห็น • 85

  • @123jeepguy
    @123jeepguy 2 ปีที่แล้ว +5

    Please do a complete video start to finish and all parts needed for the 8speed with the 3.6

    • @toddjss401
      @toddjss401 2 ปีที่แล้ว +2

      We only have done the parts like the wiring and the parts otherwise this is just a transmission job. I will try to do a video, next year.

    • @JWard2
      @JWard2 6 หลายเดือนก่อน

      Todd what's the total cost?

  • @wvjeepguy8178
    @wvjeepguy8178 2 ปีที่แล้ว

    MY 6 speed manual is getting hard to shift into 1st and reverse in my supercharged 2012 2-door JK. I wouldn't mind swapping to an auto if the price was reasonable.

  • @brandonsmith853
    @brandonsmith853 2 ปีที่แล้ว +2

    Where can I find out more info like price for install and availability?

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว +9

      8 speed in a 3.6L JK 845RFE
      Transfer Case cable mount 52121832AC $30.00
      Transmission cooler, HDA-679 $80.00
      Transmission cooler lines 68291875AB for the 8 speed $270.10
      2 Transmission cooler fittings 68489743AA $50.00
      8 Speed wiring $1500.00
      8 Speed floor plate and spacers 4
      Truck Transmission mount to t Case adapter 68147344AA $110.00
      8 Speed steel trans pan Jeep JT 68408606AB $200.00
      Transmission oil 68218925AB $30.00 needs 10 quarts
      The transmission new can cost $4000.00
      Low mile used $1200.00
      Shifter $200.00 used
      Bezel $50.00
      T Case used $500.00 non Rubicon
      Gear gauge $150.00
      Plate B $50.00
      Transmission Cooler Mounts part # JKTCM $50.00
      Labor $2500.00
      th-cam.com/video/Oz4oDr7bcHw/w-d-xo.html
      th-cam.com/video/8LC1PiS1nE8/w-d-xo.html
      th-cam.com/video/e97qytx5pEg/w-d-xo.html
      th-cam.com/video/_Qj7ADU2Pxw/w-d-xo.html
      th-cam.com/video/81n-JvFFU_g/w-d-xo.html
      th-cam.com/video/t7gHYVGNuFg/w-d-xo.html
      th-cam.com/video/G6SfNOWPl1U/w-d-xo.html
      th-cam.com/video/AFMo9s71YMc/w-d-xo.html
      th-cam.com/video/8h8yLUC7C-M/w-d-xo.html
      th-cam.com/video/tcuJMKoxpII/w-d-xo.html
      th-cam.com/video/J-VcQahShuI/w-d-xo.html
      Doing the 8 speed swap on a 2012-2018 Jeep JK and why we can not do the swap on a 2007-2011 Jeep JK with a 3.8L.
      The 3.8L engine bell-housing mounting surface is way to small to mount a 845RFE 8 speed and also the crank sensor is in the Bell-Housing of the 3.8L transmissions, so it does not make sense to make a adapter to fit the 845RFE to the 3.8L.
      Now on the 3.6L 2012-2018 Jeep JK we use the 845RFE 8 speed from a 2013-2019 Dodge Ram 1500 4x4, now we have not used the Grand Cherokee 8 speed yet and could work but i’m not sure.
      So we would start by disconnecting the battery and pulling the transmission, we would reuse the flex plate and the starter from the 3.6L JK, now on the 2012-2018 Jeep JK with the Nag1 auto transmission (A580) you will need to get a new transfer case from a 2007-2011 Jeep JK auto transmission and the 2007-2018 Jeep JK with a Manual transmission for the swap, because of the t case input is a 23 spline female and the A580 is a Male input shaft. The 8 speed is about 2 inches longer than the A580 transmission also you will need a Challenger Shifter from 2015-2019 3.6L, 5.7L, 6.4L. We also use the non Rubicon t case because of the gearing in the 8 speed is so low, now you can use the Rubicon t case but some adapter mods well need to be done, as shown in our videos.
      Now we change out the transmission cooler lines with a Grand Cherokee 5.7L cooler lines and new cooler, very important to run all new and clean, because we use Mopar 8 speed fluid and it is not compatible with Plus 4 ATF.
      We also use the 5.7L Dodge Ram truck 4x4 transmission mount to transmission and reuse the Jeep JK isolator and it bolts to the Truck Mount.
      Now the big bonus to the 845RFE is the 4.71to1 first gear and the 2 over drive gears also now you have a output speed sensor in your transmission so you no longer rely on the wheel speed sensors for the transmission and what that means is that you can now shut off the Traction control in the sand, a big bonus.

  • @ashad_._8113
    @ashad_._8113 2 หลายเดือนก่อน

    how do i just buy the harness and computer

  • @billyclaysr.5785
    @billyclaysr.5785 2 ปีที่แล้ว +1

    The instrument cluster doesn’t show the 6th 7th and 8th gear though does it???

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว

      We we get 6th gear in the dash, but we do not get 7th and 8th on the dash, I guess Jeep never thought they would have 2 more gears. Now we do have a gauge we sell if you want to see the gears.

    • @guillaumeauclair8
      @guillaumeauclair8 2 ปีที่แล้ว

      Ok, I'm in! how do I get in contact with you ( other than phone) your site does not work properly,

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว +2

      @@guillaumeauclair8 todd@jeepspeedshop.com or text 707-338-3154 or on our website you can make an appointment for a call.

  • @ashad_._8113
    @ashad_._8113 2 หลายเดือนก่อน

    how much for a swap i need shifter and all srt8 300

  • @thatmar1neguy
    @thatmar1neguy 6 หลายเดือนก่อน

    3 questions I have for ya
    Is the 8spd from a 392 different in the gear setup?
    What does a swap like this cost?
    You referenced smog sooo is your shop in Cali?

  • @tonymastriano6847
    @tonymastriano6847 2 หลายเดือนก่อน

    Can I use a 2021 3.6L and SPEED out of a JL/JT in my 2015 JK? Like to swap everything straight over...

  • @user-pk2qs3uz6m
    @user-pk2qs3uz6m 11 หลายเดือนก่อน

    What issues will I run into if I've already re-geared to 4:56?

    • @jeepspeedshop
      @jeepspeedshop  11 หลายเดือนก่อน

      Well i have a 2011 JKU with 4;56 gears and a 5.7L VVT Truck Hemi with 35 inch tires. I think this is a great combo. I'm running about 2200 RPM at 70 MPH

  • @MichaelCook1981
    @MichaelCook1981 ปีที่แล้ว

    Is there a different shifter that would work? I don’t care for the look of Challenger’s shifter.

    • @Explorersofthewest
      @Explorersofthewest ปีที่แล้ว

      What shifter would you want to use? I like the Challenger shifter and I'm not sure what is better..

  • @Krommehoek
    @Krommehoek 3 หลายเดือนก่อน

    Hi, I have an 2011 Grand cherokee 3.6 with the 5-speed. Would it be possible and smart to upgrade to an 8-speed? Hopefully you'll react.

  • @shogunofgrowing4839
    @shogunofgrowing4839 10 หลายเดือนก่อน

    Can you do this to stick shift in the same year as this I will buy a kit if can provide it

    • @jeepspeedshop
      @jeepspeedshop  10 หลายเดือนก่อน

      We don't do any Manual transmission Hemi swaps, but i can sell you all the parts but the computer. So you would be responsible for the tuning of the computer.. I don't think the computer for a manual is that great and you will need to run the Getrag 238 transmission

  • @partoems9376
    @partoems9376 2 ปีที่แล้ว

    Thanks a lot. I replaced the transmission on the 2018 jeep. But wont start. Does the transmission need any sort of programming/adaptation to start?

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว

      No the 8 speed does not need any programming to start, dose the dash say park?

  • @jacqueshall2542
    @jacqueshall2542 2 ปีที่แล้ว +1

    Hopefully you respond. Could you swap the 8 speed into a 5 speed 2012-14 Dodge charger SRT8 ? I know that 11-14 SXTs came with the 8 speed but not the 5.7 and 6.4L. If so what all would I need to complete the swap ?

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว

      I don't see why not, It would be easier to do on a Challenger than a Jeep i would think. Just buy Challenger parts and i could sell you the conversion box.

    • @ashad_._8113
      @ashad_._8113 2 หลายเดือนก่อน

      @@jeepspeedshop where can i buy the kit ?

  • @christopherfrizzell8266
    @christopherfrizzell8266 ปีที่แล้ว

    I have a 2012 JKU Manual can you point me in the direction to swap to an automatic?

    • @jeepspeedshop
      @jeepspeedshop  ปีที่แล้ว

      The only auto transmission you can use is the 8 speed and we have a kit for that..

  • @GreatEgret
    @GreatEgret 2 ปีที่แล้ว

    Is this the 845RE or 845RFE in this Jeep?

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว +1

      I guess the RE, now it came from a 2013 and up Dodge Ram 1500 4x4 3.6L truck

  • @SteedDolan
    @SteedDolan 2 ปีที่แล้ว

    Why not use the factory shifter and why does the drive position default to the manual 1st?

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว +2

      We have to use a Challenger shifter for the HP70 because their is no cable to the transmission. The 8 speed is all electronic, so the shifter is a module.

    • @SteedDolan
      @SteedDolan 2 ปีที่แล้ว

      So it's a limitation of the Nag1 shifter?

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว +1

      @@SteedDolan Yes if you are running the 8 speed you need to run the Challenger shifter, because the 8 speed does not have a cable.

    • @SteedDolan
      @SteedDolan 2 ปีที่แล้ว

      @@jeepspeedshop couldn't you just remove the cable from the Nag 1 shifter?

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว +1

      @@SteedDolan The 8 speed shifter is also a Module for the 8 speed.

  • @joepinkerton1959
    @joepinkerton1959 10 หลายเดือนก่อน

    Is anybody know what this will do for the few mileage on a Jeep?

    • @jeepspeedshop
      @jeepspeedshop  10 หลายเดือนก่อน

      We pickup 2 miles to the gallon on our 3.6L Jeep and almost 2 miles to the gallon on our 2011 Jeep JK, that we pulled the 545RFE out and put a HP70 in..

  • @jordanhasche5915
    @jordanhasche5915 8 หลายเดือนก่อน

    Is the swap just as easy in jku with 6 speed manual

    • @jeepspeedshop
      @jeepspeedshop  7 หลายเดือนก่อน

      We don't do any manual transmissions

  • @pjshooter6
    @pjshooter6 2 ปีที่แล้ว

    Will you be offering a diy kit, so those of us with the mechanical skills and live in other states can buy the kit, source a trans and do it themselves?

    • @brianasbury9453
      @brianasbury9453 2 ปีที่แล้ว

      They do on their website already

    • @pjshooter6
      @pjshooter6 2 ปีที่แล้ว

      @@brianasbury9453 I didn't find any kit for the 8speed/3.6 a couple days ago when I looked. Ill have to check again
      It does seem there's multiple websites for the jeep speed shop, and each is a little different. They could really use a good website designer and consolidation of those .

    • @pjshooter6
      @pjshooter6 2 ปีที่แล้ว

      @@brianasbury9453 just checked and when I click the 8 speed swap icon it opens up to a page with nothing. Same as a few days ago

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว +3

      Yes we do.
      8 speed in a 3.6L JK 845RFE
      Transfer Case cable mount 52121832AC $30.00
      Transmission cooler, HDA-679 $80.00
      Transmission cooler lines 68291875AB for the 8 speed $270.10
      2 Transmission cooler fittings 68489743AA $50.00
      8 Speed wiring $1500.00
      8 Speed floor plate and spacers 4
      Truck Transmission mount to t Case adapter 68147344AA $110.00
      8 Speed steel trans pan Jeep JT 68408606AB $200.00
      Transmission oil 68218925AB $30.00 needs 10 quarts
      The transmission new can cost $4000.00
      Low mile used $1200.00
      Shifter $200.00 used
      Bezel $50.00
      T Case used $500.00 non Rubicon
      Gear gauge $150.00
      Plate B $50.00
      Transmission Cooler Mounts part # JKTCM $50.00
      Labor $2500.00
      th-cam.com/video/Oz4oDr7bcHw/w-d-xo.html
      th-cam.com/video/8LC1PiS1nE8/w-d-xo.html
      th-cam.com/video/e97qytx5pEg/w-d-xo.html
      th-cam.com/video/_Qj7ADU2Pxw/w-d-xo.html
      th-cam.com/video/81n-JvFFU_g/w-d-xo.html
      th-cam.com/video/t7gHYVGNuFg/w-d-xo.html
      th-cam.com/video/G6SfNOWPl1U/w-d-xo.html
      th-cam.com/video/AFMo9s71YMc/w-d-xo.html
      th-cam.com/video/8h8yLUC7C-M/w-d-xo.html
      th-cam.com/video/tcuJMKoxpII/w-d-xo.html
      th-cam.com/video/J-VcQahShuI/w-d-xo.html
      Doing the 8 speed swap on a 2012-2018 Jeep JK and why we can not do the swap on a 2007-2011 Jeep JK with a 3.8L.
      The 3.8L engine bell-housing mounting surface is way to small to mount a 845RFE 8 speed and also the crank sensor is in the Bell-Housing of the 3.8L transmissions, so it does not make sense to make a adapter to fit the 845RFE to the 3.8L.
      Now on the 3.6L 2012-2018 Jeep JK we use the 845RFE 8 speed from a 2013-2019 Dodge Ram 1500 4x4, now we have not used the Grand Cherokee 8 speed yet and could work but i’m not sure.
      So we would start by disconnecting the battery and pulling the transmission, we would reuse the flex plate and the starter from the 3.6L JK, now on the 2012-2018 Jeep JK with the Nag1 auto transmission (A580) you will need to get a new transfer case from a 2007-2011 Jeep JK auto transmission and the 2007-2018 Jeep JK with a Manual transmission for the swap, because of the t case input is a 23 spline female and the A580 is a Male input shaft. The 8 speed is about 2 inches longer than the A580 transmission also you will need a Challenger Shifter from 2015-2019 3.6L, 5.7L, 6.4L. We also use the non Rubicon t case because of the gearing in the 8 speed is so low, now you can use the Rubicon t case but some adapter mods well need to be done, as shown in our videos.
      Now we change out the transmission cooler lines with a Grand Cherokee 5.7L cooler lines and new cooler, very important to run all new and clean, because we use Mopar 8 speed fluid and it is not compatible with Plus 4 ATF.
      We also use the 5.7L Dodge Ram truck 4x4 transmission mount to transmission and reuse the Jeep JK isolator and it bolts to the Truck Mount.
      Now the big bonus to the 845RFE is the 4.71to1 first gear and the 2 over drive gears also now you have a output speed sensor in your transmission so you no longer rely on the wheel speed sensors for the transmission and what that means is that you can now shut off the Traction control in the sand, a big bonus.

  • @BobYeeterson
    @BobYeeterson ปีที่แล้ว

    How much did the fuel economy improve?

    • @jeepspeedshop
      @jeepspeedshop  ปีที่แล้ว +1

      I did not notice a big gain in fuel economy, But i have a 2014 Jeep JKUR with a 5.7L VVT Truck Hemi and a HP70 all stock running 33s and 3:73 gears, with the MDS on, the best it got was 21 MPG.. Now i own a 2011 JKUR with the same setup but with 35.5 inch tires and 4:56 gears and that Jeep weight in at over 5000 pounds, the best that one gets is 15 MPG

  • @Badranalkandery
    @Badranalkandery 2 ปีที่แล้ว

    What about if I have a manual transmission JK
    Will I be able to read the transmission temperature?

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว +2

      You would need a AT engine computer

  • @stokesintl10
    @stokesintl10 ปีที่แล้ว

    What transmission is being used

    • @jeepspeedshop
      @jeepspeedshop  ปีที่แล้ว

      For the 3.6L Jeeps we use the 845 and 850 transmission from a 2013-2023 Dodge Ram truck 3.6L 4x4

  • @jesseyoho1648
    @jesseyoho1648 2 ปีที่แล้ว

    Could this work on a 2014 2-Door Rubicon?

    • @toddjss401
      @toddjss401 2 ปีที่แล้ว

      Yes the 8 speed will work in a 2 door and a 4 door, I'f you are running a auto transmission you will need to change out the T Case. To a 2007-2011 Jeep JK auto or a 2007-2018 Jeep JK manual

    • @davethrasher4124
      @davethrasher4124 ปีที่แล้ว

      ​@@toddjss401 manual transmission transfer cases are different? I've got a 17 Rubicon Recon 2 door, so I'm definitely interested

    • @jeepspeedshop
      @jeepspeedshop  ปีที่แล้ว

      @@davethrasher4124 So doing a 8 speed swap in a 2012-2018 Jeep JK, now the auto (A580) transmission we can't use the t case because of the input but all the rest of the t cases will work.. 2007-2018 JK manual t case will work 2007-2011 JK auto t case will work, just not the 2012-2018 JK Nag1 will not work..

    • @davethrasher4124
      @davethrasher4124 ปีที่แล้ว

      @@jeepspeedshop so I'd have to find a Rubicon transfer case that was in a manual or switch to an Atlas?

    • @jeepspeedshop
      @jeepspeedshop  ปีที่แล้ว

      @@davethrasher4124 The T cases that work are from a 2007-2011 Jeep JK auto or a 2007-2018 Jeep JK Manual

  • @themack240
    @themack240 2 ปีที่แล้ว

    JL has the 850RE, will it fit on a jk ? do we need same parts listed for the 845re ?

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว

      Yes the 850 will bolt up, you will need a non all wheel drive JL t case and the JL shifter

  • @KJsProjects
    @KJsProjects 2 ปีที่แล้ว +3

    Any bump in gas mileage? I would expect it to be the same or similar to a JL at this point.

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว +2

      Well we got 2 miles to a gallon better with our 2014 Jeep JKUR

  • @henryoak2001
    @henryoak2001 ปีที่แล้ว

    Can this be done in a JL?

    • @jeepspeedshop
      @jeepspeedshop  ปีที่แล้ว

      That is a good question, guess it would be possible. But the JL came with the 8 speed..

    • @henryoak2001
      @henryoak2001 ปีที่แล้ว

      @@jeepspeedshop I mean a manual 6 speed JL, it’d be awesome if it could be done

  • @mitchellpaterson7062
    @mitchellpaterson7062 2 ปีที่แล้ว

    You need to make this kit for a 2.8l crd jk jeep 🤷‍♂️👌

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว +1

      I would not know where to start, we have never worked on a Diesel

    • @mitchellpaterson7062
      @mitchellpaterson7062 2 ปีที่แล้ว

      @@jeepspeedshop I know at least one has been converted from 545rfe to 8hp so it can be done I’m in Australia and would be happy to donate my vehicle and work with you and the Australian Jeep speed shop ?

  • @noboundaries8981
    @noboundaries8981 2 ปีที่แล้ว

    What does it cost to do this swap? mine is a 2017 with a 6 speed manual.

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว +2

      Well with out seeing your Jeep a good easement is.
      8 speed in a 3.6L JK 845RE
      Transfer Case cable mount 52121832AC $30.00
      Transmission cooler, HDA-679 $80.00
      Transmission cooler lines 68291875AB for the 8 speed $270.10
      2 Transmission cooler fittings 68489743AA $50.00
      8 Speed wiring $1500.00
      8 Speed floor plate and spacers 4
      Truck Transmission mount to t Case adapter 68147344AA $110.00
      8 Speed steel trans pan Jeep JT 68408606AB $200.00
      Transmission oil 68218925AB $30.00 needs 10 quarts
      The transmission new can cost $4000.00
      Low mile used $1200.00
      Shifter $200.00 used
      Bezel $50.00
      T Case used $500.00 non Rubicon
      Gear gauge $150.00
      Plate B $50.00
      Transmission Cooler Mounts part # JKTCM $50.00
      Labor $2500.00

    • @noboundaries8981
      @noboundaries8981 ปีที่แล้ว

      So it would be looking at around 10k total?

    • @mails5054
      @mails5054 ปีที่แล้ว

      @@jeepspeedshop Damn why is the wiring so expensive, do you have to buy everything brand new from mopar?

    • @jeepspeedshop
      @jeepspeedshop  ปีที่แล้ว

      @@mails5054 Yes we buy everything from Mopar, I wish we could buy the wiring cheaper, but going cheap on wiring is never a good idea.

    • @mails5054
      @mails5054 ปีที่แล้ว

      @@jeepspeedshop could you in theory use the wiring from a donor car? Or does it need to be specific to make it work with the jeep. You're awesome by the way, you do really unique stuff! I hope all the success to you

  • @jearl75
    @jearl75 2 ปีที่แล้ว

    Can it work in the 3.8?

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว

      Sorry we can not do a 8 speed in a 2007-2011 Jeep JK with a 3.8L, because of the crank sensor and bel-housing

  • @Benja_fu
    @Benja_fu 2 ปีที่แล้ว

    Is posible to swap a 3.8 jk 4 speed to a 5 speed automatic ?

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว

      The only transmissions you can use is the 42RLE and the GS370 manual

  • @brianasbury9453
    @brianasbury9453 2 ปีที่แล้ว

    What exact trans is needed for your swap? 8hp45 or 8hp50? I’m putting this in a 2016 that currently has a manual

    • @jeepspeedshop
      @jeepspeedshop  2 ปีที่แล้ว

      We have used the 8HP45 4x4 and you will need a engine computer, now it will start but no PRNDL