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06-27-2025, 09:10 PM
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#1 |
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Registered User
Join Date: Dec 2011
Location: visalia ca
Posts: 1,492
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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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06-28-2025, 11:36 AM
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#2 |
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Registered User
Join Date: Feb 2016
Location: Portland Oregon
Posts: 12,406
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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.
__________________
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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06-28-2025, 01:42 PM
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#3 |
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Registered User
Join Date: Dec 2011
Location: visalia ca
Posts: 1,492
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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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06-28-2025, 02:20 PM
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#4 | |
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Registered User
Join Date: Feb 2016
Location: Portland Oregon
Posts: 12,406
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Re: Rearend swap
Quote:
Is your Burban coils or leaf springs?
__________________
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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07-11-2025, 08:35 AM
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#5 |
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Registered User
Join Date: Dec 2011
Location: visalia ca
Posts: 1,492
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Re: Rearend swap
It's coil springs
Last edited by lowrodderchev; 07-11-2025 at 10:14 PM. |
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07-11-2025, 08:54 AM
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#6 |
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Registered User
Join Date: Feb 2016
Location: Portland Oregon
Posts: 12,406
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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
__________________
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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08-08-2025, 09:04 AM
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#7 |
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Registered User
Join Date: Dec 2011
Location: visalia ca
Posts: 1,492
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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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