The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1969 - 1972 Blazers and Jimmys Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-25-2014, 12:22 PM   #1
underliner6
Registered User
 
underliner6's Avatar
 
Join Date: Oct 2013
Location: Montrose, CO
Posts: 328
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
__________________
Jim

1972 K20 Cheyenne- 350/350/205
1972 K20 Cheyenne - 350/SM465/205
underliner6 is offline   Reply With Quote
Old 11-25-2014, 01:56 PM   #2
TonyJohnson
Registered User
 
TonyJohnson's Avatar
 
Join Date: Mar 2003
Location: Cheboygan, MI
Posts: 998
Re: Replacement Body Bushings

Good question. I'm getting ready to do mine and will listen, as well.
__________________
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 --
TonyJohnson is offline   Reply With Quote
Old 11-25-2014, 02:00 PM   #3
skorpioskorpio
Registered User
 
Join Date: Nov 2010
Location: Los Angeles, CA
Posts: 1,018
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.
skorpioskorpio is offline   Reply With Quote
Old 11-26-2014, 11:56 AM   #4
underliner6
Registered User
 
underliner6's Avatar
 
Join Date: Oct 2013
Location: Montrose, CO
Posts: 328
Re: Replacement Body Bushings

Quote:
Originally Posted by skorpioskorpio View Post
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.
I will take a look for this bed support your talking about. Thanks!
__________________
Jim

1972 K20 Cheyenne- 350/350/205
1972 K20 Cheyenne - 350/SM465/205
underliner6 is offline   Reply With Quote
Old 11-27-2014, 12:57 AM   #5
Chulisohombre
Registered User
 
Chulisohombre's Avatar
 
Join Date: Sep 2013
Location: Bangor pa
Posts: 1,223
Re: Replacement Body Bushings

I used a scissor jack between the rear body and frame just in front of the gas tank.
__________________
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.
Chulisohombre is offline   Reply With Quote
Old 11-29-2014, 07:16 PM   #6
Moreyel
Active Member
 
Moreyel's Avatar
 
Join Date: Jun 2013
Location: Cedar Crest, NM
Posts: 197
Re: Replacement Body Bushings

Are most of you using the neoprene or rubber?
__________________
72 Blazer, 70 El Camino SS, Anniversary HD FatBoy, 2012 Ram 3500 4WD Dually, 17 Dodge Challenger, 80 Vette, 65 Chevy 3/4 Ton 4 W/D Pickup and some more.
Wife: 06 GMC Duramax 3500 4WD Single Wheel, 2016 BMW X3.
Next: Rust removal on my Blazer.
Thinking of putting a 50 Chevy cab on a 76 Chev 4 WD pickup.


Members Met: Aldtime, DeadheadNM
Moreyel is offline   Reply With Quote
Old 11-29-2014, 07:20 PM   #7
Chulisohombre
Registered User
 
Chulisohombre's Avatar
 
Join Date: Sep 2013
Location: Bangor pa
Posts: 1,223
Re: Replacement Body Bushings

Polyurethane
__________________
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.
Chulisohombre is offline   Reply With Quote
Old 11-29-2014, 07:25 PM   #8
Moreyel
Active Member
 
Moreyel's Avatar
 
Join Date: Jun 2013
Location: Cedar Crest, NM
Posts: 197
Re: Replacement Body Bushings

Yeah, that's what I meant. Thanks Chulisohombre
__________________
72 Blazer, 70 El Camino SS, Anniversary HD FatBoy, 2012 Ram 3500 4WD Dually, 17 Dodge Challenger, 80 Vette, 65 Chevy 3/4 Ton 4 W/D Pickup and some more.
Wife: 06 GMC Duramax 3500 4WD Single Wheel, 2016 BMW X3.
Next: Rust removal on my Blazer.
Thinking of putting a 50 Chevy cab on a 76 Chev 4 WD pickup.


Members Met: Aldtime, DeadheadNM
Moreyel is offline   Reply With Quote
Old 11-29-2014, 07:26 PM   #9
Chulisohombre
Registered User
 
Chulisohombre's Avatar
 
Join Date: Sep 2013
Location: Bangor pa
Posts: 1,223
Re: Replacement Body Bushings

No problem. Neoprene is to keep you warm. Lol
__________________
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.
Chulisohombre is offline   Reply With Quote
Old 11-30-2014, 02:51 AM   #10
underliner6
Registered User
 
underliner6's Avatar
 
Join Date: Oct 2013
Location: Montrose, CO
Posts: 328
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.
__________________
Jim

1972 K20 Cheyenne- 350/350/205
1972 K20 Cheyenne - 350/SM465/205
underliner6 is offline   Reply With Quote
Old 11-30-2014, 03:10 AM   #11
Moreyel
Active Member
 
Moreyel's Avatar
 
Join Date: Jun 2013
Location: Cedar Crest, NM
Posts: 197
Re: Replacement Body Bushings

Wow. That's encouraging. I'm not doing a frame off!
__________________
72 Blazer, 70 El Camino SS, Anniversary HD FatBoy, 2012 Ram 3500 4WD Dually, 17 Dodge Challenger, 80 Vette, 65 Chevy 3/4 Ton 4 W/D Pickup and some more.
Wife: 06 GMC Duramax 3500 4WD Single Wheel, 2016 BMW X3.
Next: Rust removal on my Blazer.
Thinking of putting a 50 Chevy cab on a 76 Chev 4 WD pickup.


Members Met: Aldtime, DeadheadNM
Moreyel is offline   Reply With Quote
Old 11-30-2014, 03:17 AM   #12
skorpioskorpio
Registered User
 
Join Date: Nov 2010
Location: Los Angeles, CA
Posts: 1,018
Re: Replacement Body Bushings

Quote:
Originally Posted by underliner6 View Post
I got mine from synergy suspension and its a nice kit.
Synergy or Energy?
skorpioskorpio is offline   Reply With Quote
Old 11-30-2014, 09:27 AM   #13
Chulisohombre
Registered User
 
Chulisohombre's Avatar
 
Join Date: Sep 2013
Location: Bangor pa
Posts: 1,223
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.
__________________
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.
Chulisohombre is offline   Reply With Quote
Old 11-30-2014, 10:18 AM   #14
bumperjack
Registered User
 
Join Date: Jan 2014
Location: NW Wisconsin
Posts: 5
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.
bumperjack is offline   Reply With Quote
Old 11-30-2014, 10:51 AM   #15
underliner6
Registered User
 
underliner6's Avatar
 
Join Date: Oct 2013
Location: Montrose, CO
Posts: 328
Re: Replacement Body Bushings

Quote:
Originally Posted by skorpioskorpio View Post
Synergy or Energy?
Correction: energy suspension
__________________
Jim

1972 K20 Cheyenne- 350/350/205
1972 K20 Cheyenne - 350/SM465/205
underliner6 is offline   Reply With Quote
Old 11-30-2014, 12:05 PM   #16
Senorx
Registered User
 
Senorx's Avatar
 
Join Date: Jan 2014
Location: South Texas
Posts: 567
Re: Replacement Body Bushings

I also ordered the Energy Suspension kit. Hopefully be tackling this job in a couple of weeks.
Senorx is offline   Reply With Quote
Old 11-30-2014, 12:36 PM   #17
Chulisohombre
Registered User
 
Chulisohombre's Avatar
 
Join Date: Sep 2013
Location: Bangor pa
Posts: 1,223
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.
Chulisohombre is offline   Reply With Quote
Old 11-30-2014, 12:59 PM   #18
Senorx
Registered User
 
Senorx's Avatar
 
Join Date: Jan 2014
Location: South Texas
Posts: 567
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?
Senorx is offline   Reply With Quote
Old 11-30-2014, 02:49 PM   #19
Chulisohombre
Registered User
 
Chulisohombre's Avatar
 
Join Date: Sep 2013
Location: Bangor pa
Posts: 1,223
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.
Chulisohombre is offline   Reply With Quote
Old 11-30-2014, 03:01 PM   #20
Senorx
Registered User
 
Senorx's Avatar
 
Join Date: Jan 2014
Location: South Texas
Posts: 567
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?
Senorx is offline   Reply With Quote
Old 11-30-2014, 03:03 PM   #21
TonyJohnson
Registered User
 
TonyJohnson's Avatar
 
Join Date: Mar 2003
Location: Cheboygan, MI
Posts: 998
Re: Replacement Body Bushings

Quote:
Originally Posted by Senorx View Post
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?
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 --
TonyJohnson is offline   Reply With Quote
Old 11-30-2014, 03:19 PM   #22
Senorx
Registered User
 
Senorx's Avatar
 
Join Date: Jan 2014
Location: South Texas
Posts: 567
Re: Replacement Body Bushings

What's the usual grade and what is overkill grade bolts?
Senorx is offline   Reply With Quote
Old 11-30-2014, 04:10 PM   #23
underliner6
Registered User
 
underliner6's Avatar
 
Join Date: Oct 2013
Location: Montrose, CO
Posts: 328
Re: Replacement Body Bushings

Quote:
Originally Posted by Senorx View Post
Can u post a pic of the scissor jack you used?

Did everybody install the bushings with the top on or off?
I kept my top on for the process. Even with the top in, my door alignment is now off and my doors don't like to close easily. The fun of the job!
__________________
Jim

1972 K20 Cheyenne- 350/350/205
1972 K20 Cheyenne - 350/SM465/205
underliner6 is offline   Reply With Quote
Old 11-30-2014, 04:19 PM   #24
Senorx
Registered User
 
Senorx's Avatar
 
Join Date: Jan 2014
Location: South Texas
Posts: 567
Re: Replacement Body Bushings

Quote:
Originally Posted by underliner6 View Post
I kept my top on for the process. Even with the top in, my door alignment is now off and my doors don't like to close easily. The fun of the job!
That's what scares me. My doors close great and are aligned.
Senorx is offline   Reply With Quote
Old 11-30-2014, 04:33 PM   #25
skorpioskorpio
Registered User
 
Join Date: Nov 2010
Location: Los Angeles, CA
Posts: 1,018
Re: Replacement Body Bushings

Bear in mind the original bolts are tack welded in.
skorpioskorpio is offline   Reply With Quote
Reply

Bookmarks

Tags
body bushings, body mounts


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 08:56 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com