'59 chev rearend qustion??????

I got a rear end out of a 59 el camino that is a 4.11 posi, it's a drop out style like a nine inch. Me being a ford guy don't have a clue what other years it will fit in. So my question is how many years did that style of rear end come in and are they worth anything????
thanks
FED

 

`55-`64 all used that syle. if it is really a 4.11 posi , it could be worth it to the right guy..is there a big P cast into the case?

 

A good 4.11 posi center section is worth some bucks....look on ebay for an idea.

The housing should fit 59-64 full size cars, maybe.

 

Same as Corvette$$

 

Wher would the P be cast in it and what does it mean(P-posi?).
FED

 

it means POSI, and it's on the front of the pumpkin, a huge letter on the drivers side, hard to miss!

The P case had extra clearance in it

here's an example

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=8063881556

 

heck whats left of the el camino?????

 

Fed, like the rest said, it is the same rearend used from 55-64 in Chevy cars. The specific housing you have fits 59-64, 58 and earlier are leaf spring. The center section is the same for all.

That rearend has a 8.2 inch ring gear and is not real strong, they will break if you get a big engine and enough traction. The posi center is worth bucks, good find.

 

what he said...except one minor nitpick, 55-57 is leaf, 58 is the first coil spring but the upper arm is different than the 59-64s

My 61 is gonna be scary with the 427/muncie/4.88 posi 8.2" and old slicks

 

Hey Squirrel, if you're going to run that stock drop-out rear, here's a couple tips you might like:
Call Reider Racing in Michigan, and double check this application, but I think he told me the spiders from a Dana 44 are the same size, but 28-spline. They'll swap right into the original GM diff. I don't remember for sure if it's a Dana 44, but I do remember it's a common rear.
Once you have 28-spline spiders, get a good set of Moser axles.
Now that you have the axles upgraded, the next week link is the driver's side main cap. (again, I think it's the driver's side...it's late, I'm really tired, and I don't have my notes handy). Moroso used to sell a billet main cap. Lamar Walden in Doraville, GA told me he could machine a billet cap for me. Every now and then you'll see an old billet cap come up on Ebay. You should have the housing align-bored to the new cap...you wouldn't let an engine main cap be out of spec by a few thousandths, and you shouldn't let a dif main be out by that much either
Once you've got decent aftermarket axles, 28-spline spiders and a billet cap, the rear end will be much stronger. Eaton is making new differentials for those housings now too. They don't have the 28-spline spiders, that I'm aware of.

-Brad

 

thanks for the tips! Oddly enough, I just got some aftermarket (stock spline) axles, a friend had one of those rears in his T bucket, and the housing was cracked and leaking oil. I got a gonga on the axles, they look identical to the stockers as far as dimensions. Aside from the 1/2" studs

 

squirrel, thanks for the clarification. All I knew for sure was that 59-64 was the same. That 28 spline axle gear conversion sounds like a good idea if one was really determined to use the old rear. We need someone to make new posi units for these.

 

Here is a good page with pictures of upgrades for these rears for use behind serious 409's ...

http://www.bruneauperformance.ca/409chevyracingposirearendparts.html

I believe there are 2 aftermarket Posi's available for those rears, Eaton and US Gear.

 

I may need it!

Let me know if you want to sell it!