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Old 06-27-2025, 09:10 PM   #1
lowrodderchev
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Rearend swap

What year rear end are you guys swapping into.your burban. Mine is a 5 lug right now out a 72 Chevy but the gear ratio is crap wanting to go to a 3.73 or something close to that just not sure what year would work
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Old 06-28-2025, 11:36 AM   #2
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Re: Rearend swap

I put 3.73's in mine. I used a thick gear set so I could use the 3 series posi I had with the 3.07's. The 12 bolt axle is plenty rugged enough for 1/2 tons under 600 or so horsepower.
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The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377
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Old 06-28-2025, 01:42 PM   #3
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Re: Rearend swap

What it set you back.someone had told me it's was around 2k I was like well guess I'll try find another axle
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Old 06-28-2025, 02:20 PM   #4
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Re: Rearend swap

Quote:
Originally Posted by lowrodderchev View Post
What it set you back.someone had told me it's was around 2k I was like well guess I'll try find another axle
If I remember it was around $1800. I needed a new axle on the drivers side and I had bad spider gears in the carrier so a used carrier added to the cost. That was with all new bearings and seals through out and the axle housing checked for straightness.

Is your Burban coils or leaf springs?
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.
RIP Bob Parks.
1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo
If it breaks I didn't want it in the first place
The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377
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Old 07-11-2025, 08:35 AM   #5
lowrodderchev
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Re: Rearend swap

It's coil springs
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Old 07-11-2025, 08:54 AM   #6
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Re: Rearend swap

Here's a link that should help. I know there are several threads with more information on using squarebody rear axles if you do a search you can find them.

https://www.67-72chevytrucks.com/vbo....php?t=622816q
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.
RIP Bob Parks.
1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo
If it breaks I didn't want it in the first place
The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377
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Old 08-08-2025, 09:04 AM   #7
lowrodderchev
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Re: Rearend swap

Well I found a 1978 Big 10 axle with 3.40 gears should match up better with my LS/4L60E. Was told.ita good axle but would anyone have any suggestions on what to look for before I start welding on new perches for my trailing arm suspension
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