Different spring perch locations?

[fly_25]

Hello everyone, I was looking at a 7.5 rear end to purchase from facebook and noticed that the spring perches were placed forward of the axle tube vs my old one which was directly on top of the axle tube. What's the reason for this? Would it still be okay to use if the original had the spring perches on top? any information is appreciated, thanks!

 

[565bbchevy]

The reason is the rear end you are looking at is not a Gbody rear end so what ever it is from means it will not be a direct bolt in.
Do you have a link to the FB rear end?

 

[fly_25]

https://www.facebook.com/marketplac...e=marketplace_search&referral_story_type=post
the post states it's a "g body" but I guess it is possible that they may be mistaken. Came from a 1986 monte carlo ss, says the ad.

 

[81cutlass]

That's not a G body rear.

See the 4 bolt drum brake bolt flange and the top ears are closer and more to the top.

It's probably a collonade A body or B body rear axle.

 

[565bbchevy]

As I stated not a Gbody rear end, so are looking to replace your 7.5 with another 7.5 or does your car not have a rear end at all?

 

[fly_25]

Keen observation! I was just looking for a cleaner one as mine has rusted into almost nothing, especially the spring perches. Always enjoy learning on this site, thanks for the replies!

 

[565bbchevy]

Keen observation! I was just looking for a cleaner one as mine has rusted into almost nothing, especially the spring perches. Always enjoy learning on this site, thanks for the replies!

Most rusty rear ends will clean up pretty well, the housing and axle tubes are relatively thick, while backing plates, rear cover and spring perches are thinner you could either fabricate some perches or buy some new replacement spring perches and weld them on.

 

[bracketchev1221]

Hard to tell from that picture, but the bulge in the rear cover does not look right. the 7.5 was kind of a flatish looking cover. That has a noticeable ring gear bulge. I would want a picture from the back.