How To Install A Gear Vendor Overdrive

In this video I demonstrate how I installed my gear vendor overdrive in a 1986 Ford F350 with a c6 automatic transmission. If you find these kinds of videos helpful, consider subscribing. Thanks for watching.
Disclaimer:
Due to factors beyond the control of Grim Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. Grim Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Grim Repair recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of Grim Repair, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not Grim Repair.

[@brandongreene3213]

Bro I felt that pick slip.

[@deepbludude4697]

Well done! I subbed you made that look super easy!

[@GrimRepair]

Thanks, It wasn't that hard.

[@jerrysurowiec]

how much did you have to shorten the driveshaft?

[@chasefell4234]

Good job cool truck
I thought you would need a second tranny cross brace. I have RV with two-piece driveshaft this was helpful it looks easy.

[@GrimRepair]

Thanks, it was pretty easy.

[@griffinmoore3036]

Mine is installed, I didnt install it myself but. The Green light comes on at 40 mph but there is no drop in rpm or anything, Any tips on where to check first?

[@robertmceuen3630]

How much does the overdrive unit weigh?

[@GrimRepair]

I don't know for sure it was a lot smaller than I was expecting. It all came in a box, probably 20x20x10, and I could pick it up and carry it.

[@robertmceuen3630]

@@GrimRepair I was just wondering about hanging it on the tail end of the tranny like that. Used to be an overdrive called(I believe) Hone-O-Drive that mounted in the middle of the driveshaft with it's own U joints and cross member. At first I thought that was the Gear Vendor kit.

[@idahopotato5837]

Do you know if you can just remove the speed sensor and controller and run a hot on a switch to the unit? Mine shifts funky at 40/45. Mine is from about 1990 so I am sure the computer is the culprit. Zero help from Gear Vendor. I don't care to split shifts in 1st and 2nd just turn it on when I am getting on a highway. I run 4.10's and its fine around town with the ATI turbo.

[@GrimRepair]

I think you can just run 12v to the actuator when you want it in overdrive. I would leave the speed sensor in there it make the speedo cable longer. Just don't hook the wires to anything. Most importantly, don't forget to subscribe.🙂

[@Jefforey]

Question i own a 1986 f250 4x4 6.9 idi diesel with c6 being mine has transfer case would it bolt on my tramsfer case amd shorten my drive shaft

[@GrimRepair]

I know they have a kit for 4x4, and I believe it bolts onto the transfer case. You can't use it when in 4x4.

[@idahopotato5837]

I have an '85 6.9 turbo with the C6 . You replace the rear of the transfer case with the GV case half. I'm sure the drive shaft is shorter. I have 4.10's and its great as a highway gear.

[@AAANDN1]

DIY !

[@GrimRepair]

Subscribe

[@slyghostish]

I like all my trucks. Doing this on a 88 suburban with 4.10 and th400!
Thanks for this video bro!

[@colingan9412]

Why not use studs on the front 4 bolt holes.

[@GrimRepair]

I'm sure you could. The kit didn't come with any, It said to reuse the original bolts.

[@egor-ql2pl]

Do u have to cut the driveshaft ?

[@GrimRepair]

Yes

[@jerrysurowiec]

@@GrimRepairhow much?

[@GrimRepair]

@jerrysurowiec I think it was around $200 to shorten and balance the drive shaft.

[@jerrysurowiec]

@@GrimRepair I meant how much did you have to Shorten the drive shaft?

[@Mr.EeToMyself]

Dude. I want. We all do. Lol
Cost?

[@GrimRepair]

When diesel was $7 a gallon, it made a lot more sense. It's around $3000 new and hard to find complete used.

[@Mr.EeToMyself]

@@GrimRepair Thanks for responding.
I'd looked just after asking, but just wondering.... how much did it help?

[@GrimRepair]

@Mr.EeToMyself In not sure. I added a turbo, and a 3000lb camper at the same time. During the few test runs I did it lowered the rpms by 500 at freeway speeds.

[@AAANDN1]

Focus

[@GrimRepair]

Like

[@jackychan8539]

Thank you for making this 🫡

[@GrimRepair]

You're welcome.