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- เผยแพร่เมื่อ 25 ส.ค. 2024
- Working on fixing rusted/sagging cab mounts and sharing what I learned in the process.
As many people have commented, ideally you would weld the washer to the frame brackets to prevent the cab from lifting. One commenter had a great idea to put a second washer under the frame bracket, this should work pretty slick and eliminate the need to weld. I don't have a long term update as I sold the truck about a year after the repair. I miss it badly.
You WON'T find these washers at Ace/True Value/Home Depot/Menards etc. You must go to a commercial metal supply shop, a place that sells to contractors, does fabrication etc. Almost all are open to the public, you'll find them in larger cities in industrial park type areas. Google "industrial metal supply" and see what is near you, then call ahead.
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Thanks for the washer tip - going to do the same and tack them to the existing support.
Weld a washer to the flush bolt, then a nut to the washer. Works, I've removed many flush broken bolts that way, sometimes yah go thru a few nuts before you get one to hold good. LOL I went thru about a box of nuts to get the really rusted broken U bolts out of my C3 Corvette axle stubs, one even snapped off after welding a nut and was recess a bit but a half dozen nuts later she came out.
You can access the body mount bolts through the cab. There are metal plates snapped into an access hole, then sealed with seam sealer. Just remove the seam sealer then use a pry tool and carefully pry up the cover. Good the put knocker-loose on them. I had the drill out a busted bolt from inside the cab. In the video, even if the bolt is broken/sawed flush, if you are a good welder, you can weld a nut to the bolt by welding inside the nut to the bolt. In addition, the heat from welding will help break the bolt free.
Big help with the washer tip. Thank you
I will soon be doing the exact same thing on my 1990 Silverado extended cab Thanks for the tips- very helpful! If I can come up with some tips of my own in the process I will make a video
MSC direct has the washers
2″ Screw, Steel USS Flat Washer
2-1/8″ ID x 4-1/4″ OD, 3/16″ Thick, Plain Finish
Great info. Nice, simple and right to the point explanation. We just rebuilt the motor in our 96 single cab Chevy and did some crazy mods to it, it's a beast. We hook up to our neighbor's trucks just for fun and drag them around like rag dolls LoL.. The sad part is where we live road salt will eat the crap out of your vehicle in no time, so cab mounts are due. I'm gonna tackle them soon and watching your video really gave me a good perspective of what I'm getting into... Thanks for the great advice...
Thanks for the tips, just about to get into this on my 97 c1500
wow.. this looks like fun... cant wait to do mine!
Awesome, this is the best video on this matter
The best thing to do is to replace one side at a time, if you lift the whole cab up with rotted mounts then your just guessing where to place your cab at.
the toggle bolt was genius!
Thanks for making video,very helpful
Very helpful and presentation
Great video I think a lot of people found what they were looking for here I searched for a while before I found this video. I have the exact same problem all six holes need help the washes are good idea I will have them welded on. I don't know about any other body Elsa sitting but in Detroit and the surrounding suburbs the streets are so raggedy and hitting all those bumps your cab is going to shift around possibly damaging wires hoses Etc
Great idea 💡
Thanks a ton for info. !!
You can get to the other side of those bolts if you pull the carpet can pull the covers
Good point Steve, that is true. Once you access the other side, do you have any tricks for getting the bolt out from that side? I assumed I'd have more room and options from the outside than from inside the cab. I worried after all the work of pulling the bench seat and carpet etc, I'd be left with even less room to weld on a nut or something to get enough purchase on the exposed bolt to get it out. I'm sure others who find this video would appreciate any tips you have for getting the bolts out from the inside.
Cut de weld on the nut and weld another nut at the same place
Excellent tips. Thank you
Doing a 93 k2500 frame swap thks for the good info
Loved the video. However, one problem seemed to stand out. If you had to use a large flat washer on the top of the bracket to prevent the bushing falling through and thus the cab sagging issue. Surely you should have placed another washer under the bracket prior to installing the lower bushing. Not installing a lower washer would allow the lower bushing to simply slip upwards through the bracket hole and therefor the whole repair would be redundant.
I and I am sure many others would like to have an update from you.
That's why I came to the comments sections I was looking for that second washer deal because the whole cab just lift right up off of the frame
@@juanmarshall4083 Well I'm glad that I was helpful to at least one person. Cheers
I welded the washer to the frame
@@kevinbergen4309 where did yall find these washers at I've looked all over except ordering on line I've tried home depot Lowes ace hardware no one has this big of washers I was thinking maybe tractor supply or something ?
@@joegirton2178 there's a nut and bolt supply place in my town. The hole in the center of the washer was approximately 2" and the outside was bigger than the amount of rust I had on my frame mount. It was about $20 for 4 of those washers but I only had to repair the cab mounts closest to the box.
Great repair
Thanks, Ive found one not far from my home. And they have them.
Good video thanks . Could btoken cab mounts cause door problems ?
I have a 95 k1500 the mounts are fine. The floor of cab is where the mounts poked through. Any idea if you can buy the part of the floor? Thanks in advance
Thank you so much
Behind the cab always rusts. The first "bed mount" but there seems to be no namenfor the bracket and debating fabbing up and welding in plate. Any thoughts
Hello, Where u get the washers? Have problems try to find them
Cleaver solution
Where do you get 4 large washers like that for $5????
I got them at a commercial metal supply house. They sell metal to business but are open to the public. Look up metal supply in the nearest big city. You won't find them at home depot or menards or hardware store. This place had a big bin of them in stock so they must be pretty common in construction and stuff.
@big6ft6 what is the size of the washers you used?
a washer for a 1 and 7/8" bolt, If I remember correctly it has a 2" diameter hole in the middle. I had to go to my local commercial metal supply place, they won't have them at a hardware store. Look for a metal supply/fab shop that sells metal to businesses. Mine had these washers in stock they were like $2. I talk about it in this video
th-cam.com/users/results?search_query=5+minute+fix+chevy+cab+mount
I have to replace the mount front of a 1999 Tahoe what do you do if mount is rusted away on the side like gone ? Because those mounts are welded to frame . Has anyone replaced the whole mount by grinding weld off ? And replacing them from one in junk yard ?
Where did you purchase the “top hats”?
LMC Truck (lmctruck.com), search their online catalog for cab and bed mounting hardware. They are on page 13 in the 88-98 chevy truck catalog.
Nice job but you could have placed a nut next to the bolt you cut off and then welded it thru the hole in the nut and proceed as you did on the others
Good idea John, that would've been worth a try for sure!! Thanks for sharing.
Hey are you the dude from Wisconsin??? Im assuming by your accent that you are. I live in Hayward myself! Lol. Cool video, My 98 Silverado is having the same issues.
I guess I could be "the dude from Wisconsin" I am just outside of Madison. Good luck with your truck!
Besides gravity, what prevents the bottom bushings from going up through the frame brackets?
Hey Scott, this is a good point. With this type of repair, while new condition bushings are stiffer and may provide some additional resistance of pulling up through the bracket, technically nothing is preventing it from happening. However anyone with this problem is driving around now with nothing preventing this either. This repair only restores cab hight/alignment, it DOES NOT repair frame brackets to OEM condition. If someone is looking to restore frame brackets to OEM functionality, they should of course weld the washer to the frame bracket. Anyone expecting to use their truck in a way that will result in forces trying to pull the cab off the frame should absolutely do that.
@@big6ft625 I was wondering if I could use two washers one on top and bottom of the bracket? Do you think that would work or maybe not enough room.
@Phillip Aurthur yes, it's worth a shot. I can't recall if there is any reason. A washer wouldn't fit on the bottom too. Should be enough room (threads) on the bolt I'd think.
@@big6ft625 Thank you for replying and I just got your message. Oh and do you know how many cab mounts are on a regular cab?
Anyone know what the torque spec is to tighten down the Energy suspension polyurethane bushings in the cab mounts? Thanks.
samee, someone please comment
I don’t even have bolts on my cab mounts 🤦🏼♂️ cause theirs 2 holes that are in my cab right under carpet 🤦🏼♂️
I was stupid and did the same thing i was just wondering if the toggle anchor worked its my last resort
Yeah, Zach it worked. I didn't crank it down quite as hard as other, but it never came out. Just sold the truck this summer and never had a problem. If I recall correctly I just used one of the existing side holes. The bolt ran at a slight angle but I was able thread a nut on no problem.
@@big6ft625 awsome thats what i was hoping to hear
Mine the whole bolt pulled clean out through the cab. =* joy
Is the hole left behind small enough to still use a toggle bolt?
The mount and bushings everything flew out onto the Interstate I knew I ran over something not tell the driveshaft was rubbing did I discover what had happened. I think that will work just have to make or buy new plates and rubber. Dealer says 100 plus each for assembly there is 6 total. I am brainstorming a way to just fab all new mounting system for the cab using large washers and stacked slices of tires as the rubber bushings. The truck may just be a total loss of my $1500. Oh well it got me to work a handful of times. pulling truck or a Farm Sleeper Drag Race Truck balls out?
Check out rockauto.com, they have full sets for under $100. Not sure if this link will work, but I'll try to paste it here.
www.rockauto.com/en/catalog/chevrolet,1993,k1500+pickup,5.7l+v8,1050961,body,body+mount,673
A real pain in the ass , old blazer
where did you get the 1-7/8 bolt washers ??
I had to go to an industrial metal supply shop. The kind that sells big sheets of metal to business and has some fab shop area etc. This one is open to the public, as I assume most are but it doesn't have a normal store front. It was in an industrial park and if you drove by looks like an office attached to a warehouse, google metal supply in your area and look for industrial/business metal supply. You won't find those washers at the hardware store (As you've probably already figured out). I actually originally went to have them fab up 4 plates for me with 2" holes, and the shop guy said, "why don't you just by four of these washers, it would be cheaper" and he took me over to their warehouse and down an isle of boxes and reached in a box full of these things and pulled out four for me. I was like "cool!"
Can't find any in Cent il ...where is the one you found at ?
Grainger has them.
1-7/8" x 4.250" OD Low Carbon Plain Finish Steel USS General Purpose Flat Washer
Fastenal Part No. (SKU) 33035 Works like a champ! Great tip!
You happen to know where to get a frame bracket mine is rotted to hell.
I've never found a supply. I've seen some youtube vids where some fabricate them from scratch, but I've never seen a place to buy the brackets.
@@big6ft625 I found a place but you think your method in the above video would allow me to replace all 4 bushings on a reg cab 92 silverado?
Cool, you should list where you found brackets for others. I think that is a common question. The bushings in your 92 should be the same bushings so anything in this video should apply to your truck from what I know, but I can't obviously promise anything without seeing your truck.
Where can I find the body mount hard ware kit
OEM hardware can be found at LMC Truck. If you want poly bushing instead of OEM rubber, I think I found aftermarket polyurethane bushing sets (no hardware) at Summit Racing? Or just google "Chevy C/K body bushing kit polyurethane" and see what comes up. Also check RockAuto.com, I seem to recall having a good bushing set, and maybe hardware? (I can't remember)
Ugh. Lol