Starting 72 rear axle install.. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gulfcoast66 · 11-06-2008, 11:50 AM

Well I got some stuff yesterday for my rear end, hopefully i will have time to do it this week end. Im still trying too get back on my feet since the storm (IKE) anyways thats all im going say about that. So for i have cleaned and painted the axle and installed new brak shoes. I have new u-bolts and gasket for cover. I got the thing from pick-a- you know the rest, last year. Inspection inside was good. its from a 1972 1/2 burban with 4.11s. Iwas thinking swapping 3.73s from my 6lug axle, but im just ready to put that thing under my truck and be that closer to being finished my truck.

gulfcoast66 · 11-06-2008, 11:53 AM

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gulfcoast66 · 11-06-2008, 11:55 AM

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gulfcoast66 · 11-06-2008, 03:09 PM

Having a hard time removing the old u-bolts from the trailing arms. If i cut them ill still have the problem of getting whats left out the trailing arms!!

Are there any tricks to pop them out whole. Any help would be app. Thx Chris.

ChopperDr · 11-06-2008, 03:23 PM

PB Blaster and a BFH. You can get lots of things done with just those two items.

From the PB Blaster site-"Quickly breaks loose the surface tension of frozen parts and protects against further rust and corrosion."

Spray it down, let it sit a bit, then beat the hell out of it. The rust and scale should break down and allow the bolts to be driven out.

Chopster

**Captainfab** · 11-06-2008, 04:51 PM

If you have a torch you can heat up the area of the trailing arms where the U bolts go thru and that'll break them loose. Don't get it too hot though. If nothing else you can cut the U bolts off and then you have a little more room on the topside to swing a BFH to drive out what is left in the trailing arms.

Rogue 64 · 11-06-2008, 07:06 PM

Quote:

Originally Posted by ChopperDr

PB Blaster and a BFH. You can get lots of things done with just those two items.

I used to use PB alot, but tried "Deep Creep" and it kicks the rust out of PB.

http://www.seafoamsales.com/deepCreepTech.htm

Try it for yourself, that and a lead hammer.

kizer · 11-06-2008, 06:09 PM

I personally cut the U-bolts as low as possible making 3 pieces. The arch was basically cut out.

I then pulled the trailing arm off the cross member and then I sprayed the heck out of the bolt and let it penatrate the trailing arm. I then flipped the arm over on its top and pushed down and the bolt pushed down and well the nut side pushed out. Just make sure you put all of the weight on the cut off bolt not the trailing arm its self.

Oh I forgot to mention I did lower the arm as low as I could with it still connected and U-bolt cut and gave it a few good wacks with a peice of wood under it so I could hammer the nut side down. The trick of course being I soaked the arm with PB blaster the day before and just before I hit it. AFter I hit it a few times with a small hammer I then used some channel locks and twisted the U-bolt then I took it off and did what I mentioned in the paragraph up above.

Looks like you bought the same bolts as I did.

gulfcoast66 · 11-09-2008, 09:25 PM

Man I am finished with the install of the rear axel. Ran into a couple of problems 1) The washers that lmc sent were to big to fit the bottom of the shock bracket, So im glad i did not thow anything away 2) My panhard bar dont fit anymore, but my truck is sitting on its own weight, Oh yeah the72 is a little wider then the 66 rear. do anybody know were the best priced panhard bar are? Chris..

gulfcoast66 · 11-09-2008, 09:34 PM

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gulfcoast66 · 11-09-2008, 09:35 PM

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gulfcoast66 · 11-09-2008, 09:37 PM

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gulfcoast66 · 11-09-2008, 09:38 PM

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gulfcoast66 · 11-09-2008, 09:39 PM

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joe231 · 11-09-2008, 09:50 PM

looks good!!

gulfcoast66 · 11-09-2008, 10:41 PM

Thanks Joe!

joe231 · 11-09-2008, 11:03 PM

cpp 1965-72 Adj. Track Bar - 24” long $59.99
LINKY

that is all i can find right now, but there are plenty more out there
why won't your work? shows 65-72 are the same

gulfcoast66 · 11-09-2008, 11:56 PM

I dont know whats going on Joe, Im having problems getting the rear end to line up i guess tomorrow ill try it again.

protrash64 · 11-10-2008, 12:32 AM

Hey gulf....when I took my 'burb apart the rear shifted to one side. I think they can be under load one way or another. I was laying under the truck pushing the frame with my feet and the rear with an arm trying to get the bar on to the mount. It was one of the many BFH moments working on that stuff. Your arm is probably still sore from taking out those U-bolts

.

gulfcoast66 · 11-10-2008, 10:54 PM

Yeah thats the problem, I checked each side and sure nuff one side is sticking out more then the other. Protrash did you post pics of your tank? The reason i ask is i have a gas tank i picked up from somebody for 10.00$ he didnt know what it was, i dont know but it looks like yours can you post some flicks here for me Thanks bro. Ill post some of the tank that i have.. Chris

60apache · 03-11-2010, 12:35 AM

would the 72 be a bolt in on a 1960?

**Captainfab** · 03-11-2010, 01:01 AM

NO.....you'll have to move the trailing arm mounts and the '72 uses the short panhard bar. So you'd be best off to transfer the panhard bar and it's mount from your current rear end to the new one. In other words, cutting and welding required.

Quote:

Originally Posted by 60apache

would the 72 be a bolt in on a 1960?

Tx Firefighter · 03-11-2010, 11:56 PM

Quote:

Originally Posted by 60apache

would the 72 be a bolt in on a 1960?

Only 63 and newer is it a bolt in. Your trailing arm pads are different width apart on the earlier trucks.

60apache · 03-11-2010, 11:24 PM

where did you buy new u bolts from?

**Captainfab** · 03-12-2010, 02:19 AM

I get mine from a business that specializes in new and rebuilt automotive springs. You should be able to get them from a good auto parts supplier such as NAPA.

Quote:

Originally Posted by 60apache

where did you buy new u bolts from?

11-06-2008, 11:50 AM	#1
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Starting 72 rear axle install.. Well I got some stuff yesterday for my rear end, hopefully i will have time to do it this week end. Im still trying too get back on my feet since the storm (IKE) anyways thats all im going say about that. So for i have cleaned and painted the axle and installed new brak shoes. I have new u-bolts and gasket for cover. I got the thing from pick-a- you know the rest, last year. Inspection inside was good. its from a 1972 1/2 burban with 4.11s. Iwas thinking swapping 3.73s from my 6lug axle, but im just ready to put that thing under my truck and be that closer to being finished my truck. __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet

11-06-2008, 11:53 AM	#2
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Re: Starting 72 rear axle install.. [IMG][/IMG] __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet

11-06-2008, 11:55 AM	#3
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Re: Starting 72 rear axle install.. [IMG][/IMG] __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet

11-06-2008, 03:09 PM	#4
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Re: Starting 72 rear axle install.. Having a hard time removing the old u-bolts from the trailing arms. If i cut them ill still have the problem of getting whats left out the trailing arms!! Are there any tricks to pop them out whole. Any help would be app. Thx Chris. __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet

11-06-2008, 03:23 PM	#5
ChopperDr Registered User Join Date: Feb 2008 Location: WA Posts: 189	Re: Starting 72 rear axle install.. PB Blaster and a BFH. You can get lots of things done with just those two items. From the PB Blaster site-"Quickly breaks loose the surface tension of frozen parts and protects against further rust and corrosion." Spray it down, let it sit a bit, then beat the hell out of it. The rust and scale should break down and allow the bolts to be driven out. Chopster

11-06-2008, 04:51 PM	#6
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: Starting 72 rear axle install.. If you have a torch you can heat up the area of the trailing arms where the U bolts go thru and that'll break them loose. Don't get it too hot though. If nothing else you can cut the U bolts off and then you have a little more room on the topside to swing a BFH to drive out what is left in the trailing arms. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

11-06-2008, 06:09 PM	#8
kizer Its Deja Vu time again Join Date: Aug 2008 Location: Marysville, North of Seattle WA Posts: 815	Re: Starting 72 rear axle install.. I personally cut the U-bolts as low as possible making 3 pieces. The arch was basically cut out. I then pulled the trailing arm off the cross member and then I sprayed the heck out of the bolt and let it penatrate the trailing arm. I then flipped the arm over on its top and pushed down and the bolt pushed down and well the nut side pushed out. Just make sure you put all of the weight on the cut off bolt not the trailing arm its self. Oh I forgot to mention I did lower the arm as low as I could with it still connected and U-bolt cut and gave it a few good wacks with a peice of wood under it so I could hammer the nut side down. The trick of course being I soaked the arm with PB blaster the day before and just before I hit it. AFter I hit it a few times with a small hammer I then used some channel locks and twisted the U-bolt then I took it off and did what I mentioned in the paragraph up above. Looks like you bought the same bolts as I did. __________________ Its not pretty but its mine to figure out. The build / The Photos / Build Diary Last edited by kizer; 11-06-2008 at 06:13 PM.

11-09-2008, 09:25 PM	#9
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Re: Starting 72 rear axle install.. Man I am finished with the install of the rear axel. Ran into a couple of problems 1) The washers that lmc sent were to big to fit the bottom of the shock bracket, So im glad i did not thow anything away 2) My panhard bar dont fit anymore, but my truck is sitting on its own weight, Oh yeah the72 is a little wider then the 66 rear. do anybody know were the best priced panhard bar are? Chris.. __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet

11-09-2008, 09:34 PM	#10
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Re: Starting 72 rear axle install.. [IMG][/IMG] __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet

11-09-2008, 09:35 PM	#11
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Re: Starting 72 rear axle install.. [IMG][/IMG] __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet

11-09-2008, 09:37 PM	#12
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Re: Starting 72 rear axle install.. [IMG][/IMG] __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet

11-09-2008, 09:38 PM	#13
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Re: Starting 72 rear axle install.. [IMG][/IMG] __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet

11-09-2008, 09:39 PM	#14
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Re: Starting 72 rear axle install.. [IMG][/IMG] __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet

11-09-2008, 09:50 PM	#15
joe231 Registered User Join Date: Dec 2007 Location: Palmer, Alaska Posts: 13,821	Re: Starting 72 rear axle install.. looks good!! __________________ *CHEVY ONLY*

11-09-2008, 10:41 PM	#16
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Re: Starting 72 rear axle install.. Thanks Joe! __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet



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11-09-2008, 11:03 PM	#17
joe231 Registered User Join Date: Dec 2007 Location: Palmer, Alaska Posts: 13,821	Re: Starting 72 rear axle install.. cpp 1965-72 Adj. Track Bar - 24” long $59.99 LINKY that is all i can find right now, but there are plenty more out there why won't your work? shows 65-72 are the same __________________ *CHEVY ONLY* Last edited by joe231; 11-09-2008 at 11:04 PM.

11-09-2008, 11:56 PM	#18
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Re: Starting 72 rear axle install.. I dont know whats going on Joe, Im having problems getting the rear end to line up i guess tomorrow ill try it again. __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet

11-10-2008, 12:32 AM	#19
protrash64 Resistance is Futile Join Date: Dec 2006 Location: Mesa,Arizona Posts: 3,520	Re: Starting 72 rear axle install.. Hey gulf....when I took my 'burb apart the rear shifted to one side. I think they can be under load one way or another. I was laying under the truck pushing the frame with my feet and the rear with an arm trying to get the bar on to the mount. It was one of the many BFH moments working on that stuff. Your arm is probably still sore from taking out those U-bolts. __________________ 64 CHEVY PICK-UP > http://67-72chevytrucks.com/vboard/s...otrash+re-hash 64 CARRYALL >http://67-72chevytrucks.com/vboard/s...=1964+suburban 66 LB >http://67-72chevytrucks.com/vboard/s...d.php?t=427852 STRENGTH/DETERMINATION/MERCILESS/FOREVER .......posted via stationary device

11-10-2008, 10:54 PM	#20
gulfcoast66 64-66 CHEVY JUNKIE Join Date: Apr 2007 Location: Cypress ,Texas Posts: 1,516	Re: Starting 72 rear axle install.. Yeah thats the problem, I checked each side and sure nuff one side is sticking out more then the other. Protrash did you post pics of your tank? The reason i ask is i have a gas tank i picked up from somebody for 10.00$ he didnt know what it was, i dont know but it looks like yours can you post some flicks here for me Thanks bro. Ill post some of the tank that i have.. Chris __________________ 1966 C-10 Fleetside LWB, 350 Lt1 4l60-E 2008 Silverado Crew Cab, 4.8 4l60-E 1998 GMC Yukon 4x4 L-31 Vortec, 4l60-E 2017 GMC Serra 4x4 5.3 Vortec, 4l60-E Do It In A Chevrolet

03-11-2010, 12:35 AM	#21
60apache Registered User Join Date: Mar 2010 Location: brandon, ms Posts: 385	Re: Starting 72 rear axle install.. would the 72 be a bolt in on a 1960?

03-11-2010, 11:24 PM	#24
60apache Registered User Join Date: Mar 2010 Location: brandon, ms Posts: 385	Re: Starting 72 rear axle install.. where did you buy new u bolts from?

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