Spacing on axel housing plates - The 1947 - Present Chevrolet & GMC Truck Message Board Network

70 GMC 4x4 · 03-26-2002, 11:55 PM

As many of you know I just did the drum to disc swap, but do to different ratios I have to swap out the rear axel. I went to put the rear axel on and the plates where the leaf sits does not line up. Can I torch them off and reweld them? The new rear end is a 14 bolt corporate.

Scrub · 03-27-2002, 12:29 AM

I just did the same thing. I took mine to a local shop and had them air-arc the pads off. It is much cooler and won't overheat the axle tube. It cost me 30 bucks. I got it back and had to torch the shock mounts too, even though the axle had been on a 70 gmc 2wd. Both the spring and shocks are different on 4wd vs 2wd.
The Corp-14 will have way different shock mounts. You probably want to save the shock mounts off you current axle and weld them on the Corp-14. Also, the U-joint may be bigger. You can get and un-even cross u-joint that is bigger one way that the other way. with the Un-even u-joint, you won't have to cut your driveline (maybe).

ON my 2wd, the park brake cables were too short, I just welded a 2 inch length of 1/2 inch dia pipe on the hangers. It looks like hell, but that was 100,000 miles ago.

------------------
Scrub
70 GMC 1,000,000 + miles
72 K-20 project, 456 Dana60 front, Corp14 rear w/locker, 265R19.5 tires 20-ply. Warn 12k winches both ends, Cross-over steering with raised tie-rod, Powerbox steering, 4500 watt 120-AC power, Air, Hydraulic aux power, 4 inch lift, 5000 lb air-bags both ends.

03-26-2002, 11:55 PM	#1
70 GMC 4x4 Registered User Join Date: Apr 2001 Location: Marion, Iowa Posts: 126	Spacing on axel housing plates As many of you know I just did the drum to disc swap, but do to different ratios I have to swap out the rear axel. I went to put the rear axel on and the plates where the leaf sits does not line up. Can I torch them off and reweld them? The new rear end is a 14 bolt corporate. __________________ 70 3/4 GMC 4x4, 400sb

03-27-2002, 12:29 AM	#2
Scrub Collector of rusty Items Join Date: Dec 2001 Location: Sisters,Oregon USA Posts: 731	I just did the same thing. I took mine to a local shop and had them air-arc the pads off. It is much cooler and won't overheat the axle tube. It cost me 30 bucks. I got it back and had to torch the shock mounts too, even though the axle had been on a 70 gmc 2wd. Both the spring and shocks are different on 4wd vs 2wd. The Corp-14 will have way different shock mounts. You probably want to save the shock mounts off you current axle and weld them on the Corp-14. Also, the U-joint may be bigger. You can get and un-even cross u-joint that is bigger one way that the other way. with the Un-even u-joint, you won't have to cut your driveline (maybe). ON my 2wd, the park brake cables were too short, I just welded a 2 inch length of 1/2 inch dia pipe on the hangers. It looks like hell, but that was 100,000 miles ago. ------------------ Scrub 70 GMC 1,000,000 + miles 72 K-20 project, 456 Dana60 front, Corp14 rear w/locker, 265R19.5 tires 20-ply. Warn 12k winches both ends, Cross-over steering with raised tie-rod, Powerbox steering, 4500 watt 120-AC power, Air, Hydraulic aux power, 4 inch lift, 5000 lb air-bags both ends. __________________ Scrub Sisters, Oregon - Home of the Sisters Rodeo. 70 GMC 1,000,000 + miles 72 K-20 project, 456 Dana60 front, Corp14 rear w/locker, 265R19.5 tires 20-ply. Warn 12k winches both ends, Cross-over steering with raised tie-rod, Powerbox steering, 4500 watt 120-AC power, Air, Hydraulic aux power, 4 inch lift, 5000 lb air-bags both ends.



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