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#1 |
Registered User
Join Date: Oct 2013
Location: Montrose, CO
Posts: 328
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Replacement Body Bushings
I am in the process of replacing the body bushings on my 72. I have succesfully replaced all of the bushings except for the rear two by jacking up the body from the rockers.
What is the best place to jack up the rear to access the two bushings next to the gas tank? I'm worried that if I jack it from the bottom of the tailgate, even with a piece of 2x4 under it, it's going to put too much stress on the tailgate. What my best option here? Jim
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Jim 1972 K20 Cheyenne- 350/350/205 1972 K20 Cheyenne - 350/SM465/205 |
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#2 |
Registered User
Join Date: Mar 2003
Location: Cheboygan, MI
Posts: 998
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Re: Replacement Body Bushings
Good question. I'm getting ready to do mine and will listen, as well.
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Tony Johnson -- '71 Blazer w/L-31 Vortec 350, SM465, NP205, performer intake, edelbrock 1406, HEI, 4" lift, Boyd EFI tank, Vintage A/C My Blazer -- |
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#3 |
Registered User
Join Date: Nov 2010
Location: Los Angeles, CA
Posts: 1,018
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Re: Replacement Body Bushings
There is a heavy bolt on bed support, as long as you still have rear wells in place you should be fine with that one. When I stripped mine I used that support to hold up the body while I dropped the frame out from underneath.
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#4 | |
Registered User
Join Date: Oct 2013
Location: Montrose, CO
Posts: 328
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Re: Replacement Body Bushings
Quote:
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Jim 1972 K20 Cheyenne- 350/350/205 1972 K20 Cheyenne - 350/SM465/205 |
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#5 |
Registered User
Join Date: Sep 2013
Location: Bangor pa
Posts: 1,223
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Re: Replacement Body Bushings
I used a scissor jack between the rear body and frame just in front of the gas tank.
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72 3/4 ton blazer. 5 inch lift on 35 inch tires. 355 corvette engine with crane roller rockers, rv cam, edelbrock carb and intake with one inch spacer. Thrush Headers with flowmaster 40 duels. 4speed sm465 manual. 4 wheel disk brakes with Inboarded rear shock prerunner style mounts and shocks. |
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#6 |
Active Member
![]() Join Date: Jun 2013
Location: Cedar Crest, NM
Posts: 199
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Re: Replacement Body Bushings
Are most of you using the neoprene or rubber?
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72 Blazer, 70 El Camino SS, Anniversary HD FatBoy, 2020 Ram 2500, 80 Vette, 65 Chevy 3/4 Ton 4 W/D Pickup and some more. Wife: 06 GMC Duramax 3500 4WD Single Wheel Next: Rust removal on my Blazer. Thinking of putting a 50 Chevy cab on a 76 Chev 4 WD pickup. ![]() Members Met: Aldtime, DeadheadNM |
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#7 |
Registered User
Join Date: Sep 2013
Location: Bangor pa
Posts: 1,223
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Re: Replacement Body Bushings
Polyurethane
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72 3/4 ton blazer. 5 inch lift on 35 inch tires. 355 corvette engine with crane roller rockers, rv cam, edelbrock carb and intake with one inch spacer. Thrush Headers with flowmaster 40 duels. 4speed sm465 manual. 4 wheel disk brakes with Inboarded rear shock prerunner style mounts and shocks. |
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#8 |
Active Member
![]() Join Date: Jun 2013
Location: Cedar Crest, NM
Posts: 199
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Re: Replacement Body Bushings
Yeah, that's what I meant. Thanks Chulisohombre
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72 Blazer, 70 El Camino SS, Anniversary HD FatBoy, 2020 Ram 2500, 80 Vette, 65 Chevy 3/4 Ton 4 W/D Pickup and some more. Wife: 06 GMC Duramax 3500 4WD Single Wheel Next: Rust removal on my Blazer. Thinking of putting a 50 Chevy cab on a 76 Chev 4 WD pickup. ![]() Members Met: Aldtime, DeadheadNM |
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#9 |
Registered User
Join Date: Sep 2013
Location: Bangor pa
Posts: 1,223
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Re: Replacement Body Bushings
No problem. Neoprene is to keep you warm. Lol
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72 3/4 ton blazer. 5 inch lift on 35 inch tires. 355 corvette engine with crane roller rockers, rv cam, edelbrock carb and intake with one inch spacer. Thrush Headers with flowmaster 40 duels. 4speed sm465 manual. 4 wheel disk brakes with Inboarded rear shock prerunner style mounts and shocks. |
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#10 |
Registered User
Join Date: Oct 2013
Location: Montrose, CO
Posts: 328
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Re: Replacement Body Bushings
The mounts I put on are polyurethane. I never want to replace these again in my life time unless I do a frame off. I got mine from synergy suspension and its a nice kit.
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Jim 1972 K20 Cheyenne- 350/350/205 1972 K20 Cheyenne - 350/SM465/205 |
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#11 |
Active Member
![]() Join Date: Jun 2013
Location: Cedar Crest, NM
Posts: 199
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Re: Replacement Body Bushings
Wow. That's encouraging. I'm not doing a frame off!
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72 Blazer, 70 El Camino SS, Anniversary HD FatBoy, 2020 Ram 2500, 80 Vette, 65 Chevy 3/4 Ton 4 W/D Pickup and some more. Wife: 06 GMC Duramax 3500 4WD Single Wheel Next: Rust removal on my Blazer. Thinking of putting a 50 Chevy cab on a 76 Chev 4 WD pickup. ![]() Members Met: Aldtime, DeadheadNM |
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#12 |
Registered User
Join Date: Nov 2010
Location: Los Angeles, CA
Posts: 1,018
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Re: Replacement Body Bushings
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#13 |
Registered User
Join Date: Sep 2013
Location: Bangor pa
Posts: 1,223
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Re: Replacement Body Bushings
The poly will last forever so that's why I did mine that way as well. I also
Wanted a more solid feel to The truck. I won't ever be pulling these off again either if I can help it. Put in coated hardware so rust can't eat away the bolts through the sleeves in the body this time too. Was a pain to get out the originals. I'm pretty sure mine are energy suspension. I used them to replace my front shackle bushings as well.
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72 3/4 ton blazer. 5 inch lift on 35 inch tires. 355 corvette engine with crane roller rockers, rv cam, edelbrock carb and intake with one inch spacer. Thrush Headers with flowmaster 40 duels. 4speed sm465 manual. 4 wheel disk brakes with Inboarded rear shock prerunner style mounts and shocks. |
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#14 |
Registered User
Join Date: Jan 2014
Location: NW Wisconsin
Posts: 5
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Re: Replacement Body Bushings
I have been planning to do this and I think I have two options that should work depending on equipment available.
1: Install eye bolts in the rear corners with a backing plate under for more strength, using a chain and a cherry picker lift the rear and support with stands. I am a little concerned the eye bolts will bend the bed when lifted even with the plates so either use a long piece of thick walled square tubing or if you plan on removing the bolts (I want to leave them in for tie downs) mount them in the center then fill holes when finished. Use jack stands to support the tub while replacing for safety! 2: Raise the rear and support the body only with tall jack stands, place them on the bed bracing or on something else structural (NOT the tailgate or bedside sheet metal), lowering the vehicle onto another set of stands should allow you to remove the jack to replace the bushings safely. |
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#15 |
Registered User
Join Date: Oct 2013
Location: Montrose, CO
Posts: 328
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Re: Replacement Body Bushings
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Jim 1972 K20 Cheyenne- 350/350/205 1972 K20 Cheyenne - 350/SM465/205 |
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#16 |
Registered User
![]() Join Date: Jan 2014
Location: South Texas
Posts: 567
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Re: Replacement Body Bushings
I also ordered the Energy Suspension kit. Hopefully be tackling this job in a couple of weeks.
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#17 |
Registered User
Join Date: Sep 2013
Location: Bangor pa
Posts: 1,223
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Re: Replacement Body Bushings
I Just used a scissor jack Between The body and frame and replaced them one at a time. The front ones under the radiator support were the hardest. Had to pull the front clip and lift the support to get those bushings. Had to use a couple lift straps and a two by four to hold it up to get it apart. Also in the rear four bolts they are spot welded to the body so have to be grinded off and I just used a sawzall to get the nuts off of they break. Then had to use a air chisel and sledge to pop them back Through the body since they are usually rusted together.
__________________
72 3/4 ton blazer. 5 inch lift on 35 inch tires. 355 corvette engine with crane roller rockers, rv cam, edelbrock carb and intake with one inch spacer. Thrush Headers with flowmaster 40 duels. 4speed sm465 manual. 4 wheel disk brakes with Inboarded rear shock prerunner style mounts and shocks. |
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#18 |
Registered User
![]() Join Date: Jan 2014
Location: South Texas
Posts: 567
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Re: Replacement Body Bushings
Can u post a pic of the scissor jack you used?
Did everybody install the bushings with the top on or off? |
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#19 |
Registered User
Join Date: Sep 2013
Location: Bangor pa
Posts: 1,223
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Re: Replacement Body Bushings
I used just the regular type of jack that every car has in the trunk to change a tire. The body only has to be lifted Off enough to get the old ones out and install the new bushings. Most kits come with new bolts but I used the original ones for the bushings under the front floorboards as the stock ones were much bigger and stronger than what Was in the kit. But the rest of them I used as they were coated for rust protection. I did one at a time just moving down from front to back. All have to Be loosened up first as well but I didn't have much left of my bushings so that didn't really Matter. The back four were the second worst because of the taipan, bumper, and gas tank. Plus just the years of rust had corroded everything. There was no rubber left at all on the tailgate far rear ones so my trucks body was flipping around when I took corners sharply. Kinda scary.
__________________
72 3/4 ton blazer. 5 inch lift on 35 inch tires. 355 corvette engine with crane roller rockers, rv cam, edelbrock carb and intake with one inch spacer. Thrush Headers with flowmaster 40 duels. 4speed sm465 manual. 4 wheel disk brakes with Inboarded rear shock prerunner style mounts and shocks. |
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#20 |
Registered User
![]() Join Date: Jan 2014
Location: South Texas
Posts: 567
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Re: Replacement Body Bushings
I'm just buying all new bolts. I guess I'm expecting the worst and having to cut my bolts off due to rust. My Energy Suspension didn't come with the bolts. Anybody have a source for the bolts?
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#21 |
Registered User
Join Date: Mar 2003
Location: Cheboygan, MI
Posts: 998
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Re: Replacement Body Bushings
You can use the parts list and pics in the LMC catalog to get sizes, then just source at a hardware store. Make sure you get the right grade...
__________________
Tony Johnson -- '71 Blazer w/L-31 Vortec 350, SM465, NP205, performer intake, edelbrock 1406, HEI, 4" lift, Boyd EFI tank, Vintage A/C My Blazer -- |
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#22 |
Registered User
![]() Join Date: Jan 2014
Location: South Texas
Posts: 567
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Re: Replacement Body Bushings
What's the usual grade and what is overkill grade bolts?
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#23 | |
Registered User
Join Date: Oct 2013
Location: Montrose, CO
Posts: 328
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Re: Replacement Body Bushings
Quote:
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__________________
Jim 1972 K20 Cheyenne- 350/350/205 1972 K20 Cheyenne - 350/SM465/205 |
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#24 |
Registered User
![]() Join Date: Jan 2014
Location: South Texas
Posts: 567
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Re: Replacement Body Bushings
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#25 |
Registered User
Join Date: Nov 2010
Location: Los Angeles, CA
Posts: 1,018
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Re: Replacement Body Bushings
Bear in mind the original bolts are tack welded in.
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