Help!? What rear end is this?

Found it for sale, havent seen it in person yet. Just trying to figure out what it is to see if i should go pick it up. Backing plates dont look like ford to me but im not sure if its early 9". Or i was thinking olds but im not really sure. Thanks for any help. John

 

Not a 9 in.

 

Not a 9 in. Not an 8 in.

 

Olds.

 

olds or old chevy ?? i think

 

Don't know on that pic..but an Olds should be 60" flange to flange with 5 on 5" pattern

 

olds?

 

its upside down for starters...could be olds pontiac...early ones suck, later ones are preferred

 

Mopar 8 3/4

 

Pretty sure it's a GM might be Lasalle

 

Its a hoskiss style head - not a salisbury so its more like a ford or a mopar than a trad GM one?
And i don't mind someone proving me wrong!! LOL

 

Before about 1965 (on full size cars) GM used very few, if any, Salisbury style axles that I can think of. The rear axle assembly pictured looks, to me, most like Olds/Pont as others have suggested. Even the drum end of the axle shaft has the indentation characteristic of Olds/Pont.

Salisbury style started, I believe, with the GM compacts of 1961, went into the middle size "A" bodies introduced in 1964 and pretty much across the board by 1965.

I feel pretty certain it is not Ford or Mopar'

Ray

 

Look at the bearing flanges, its an Olds/Pontiac. Mopars used that extra hole at the bottom (facing up in the picture) and it isn't there. I have about 30 of those pumpkins just like the picture in my shop.

 

yeah, ahem. they were so "sucky" that they remained the prime choice for top fuel cars thru the end of the sixties....

 

Pretty sure Top meant the early (56 and earlier) not the 58-64's that were used for years.

 

56 and earlier was a good strong unit. Mickey Thompson offered the magnesium pig for it side by side with the 57-64 unit

check the 1967 peterson book on chassis construction in the article where Don Long builds a fueler. he uses the early units

 

The axles were the weak link in those rears (56 and earlier). They were only 10 spline (I believe) and with any amount of rubber and decent horsepower twist fairly easily. The later ones were prefered for size and 3X the amount of splines.

 

http://www.jalopyjournal.com/forum/showthread.php?t=129676&highlight=olds+rear

Here is a good thread on Olds rears.

 

My pre '57 Olds rear end has bolts attaching the pumpkin instead of studs/nuts like the '57 - '64's have. The earlier rear also has a flat yoke that takes a u-joint with a tang on the caps rather than round caps and u-bolts like the '57 - '64 does.
Mickey Thompson also made an aluminum 3rd member for the '57 -'64 olds rears...ive got one in my garage.

 

With the springs on the drums , may indicate Mopar ??

 

For the LAST %$#&@ TIME............IT IS NOT A MOPAR!!!!!!!!

GM used those anti squeal springs too.............

Ray

 

yeah but most of them had been upgraded to the "newer" 30+ spline axels...and generally the 3 ribbed center was the more desisreable to use also...the 10 spline axels are known for twisting and good luck finding a decent center and posi for the 10 spline....

if need be i can go out and lay under my topolino and take a picture of my olds housing..upside down....yeah, vintage retired drag race narrowed olds housing, 3 rib center and old school kick ass Henry's axels...that i had to cut wheelie bar mounts off of and also the watts link system...it is the real deal.......


so back on topic, if it has early 10 spline axels, well most folks will tell ya it is considered weak....if it is later model with more then 10 spline count, grab it.......

 

x2, definitely not mopar!