RE: the olds-pontiac rear - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*C-10 simplex* · 07-28-2009, 11:51 PM

Can we discuss the famed/fabled olds-pontiac rear differential+axle?

(funny how both brands are gone.....anyways.....)

2) If this rear was so good (and i'm not saying it wasn't; i just don't know anything about it) then why was it discontinued relatively quickly and why did the chevy 10/12 bolts take over as the "corporate" rear axle?

Marv D · 07-29-2009, 11:16 AM

They were the hot ticket OF THE DAY. They would stand a lot of abuse. I have a friend in Florida that has a altered with a early olds rear end under it. VERY old school piece and now full of aftermarket pieces for sure. But started life in this altered with typical narrowed axles and pretty much stock internals. Now days it's even hard to find aftermarket pieces for them.

Today you can make ANY rear near bulletproof,, just a matter of $'s. I know of a mid-8 second second gen camaro in Sweeden running a 10bolt (FULL of every trick MarkWilliams has to offer) But it is still a GM 10 bolt housing (with bracing, bigger tubes, bigger housing ends, billet spool, bla bla bla bla bla...) It's just money!

nico · 08-03-2009, 01:13 PM

I have been told by several sources, including a GM dealer rep from the time, that the rear end was designed at GM and used up to the 1957 model year. At the time, it was one of the strongest units readily available.

Later that year, Ford scooped up several of the GM design engineers, and the in next year couple years, the design showed up (with modifications) as the Ford 9" and derivatives.

07-28-2009, 11:51 PM	#1
C-10 simplex Account Suspended Join Date: Dec 2008 Location: indisclosed Posts: 1,515	RE: the olds-pontiac rear Can we discuss the famed/fabled olds-pontiac rear differential+axle? (funny how both brands are gone.....anyways.....) 2) If this rear was so good (and i'm not saying it wasn't; i just don't know anything about it) then why was it discontinued relatively quickly and why did the chevy 10/12 bolts take over as the "corporate" rear axle?

07-29-2009, 11:16 AM	#2
Marv D Registered Truck Offender Join Date: May 2008 Location: hells training ground (aka Ariz) Posts: 3,118	Re: the olds-pontiac rear They were the hot ticket OF THE DAY. They would stand a lot of abuse. I have a friend in Florida that has a altered with a early olds rear end under it. VERY old school piece and now full of aftermarket pieces for sure. But started life in this altered with typical narrowed axles and pretty much stock internals. Now days it's even hard to find aftermarket pieces for them. Today you can make ANY rear near bulletproof,, just a matter of $'s. I know of a mid-8 second second gen camaro in Sweeden running a 10bolt (FULL of every trick MarkWilliams has to offer) But it is still a GM 10 bolt housing (with bracing, bigger tubes, bigger housing ends, billet spool, bla bla bla bla bla...) It's just money! __________________ Still playin with trucks, even at my age! When you're dead, it's only a problem for the people around you, because you don't know you're dead. .....It's kinda the same when your STUPID. I just did my taxes and reviewed my SS statement. Thanks to the current administration it looks like I will only have to work till noon on the day of my funeral.

08-03-2009, 01:13 PM	#3
nico Registered User Join Date: Nov 2006 Location: Marietta, OK Posts: 153	Re: the olds-pontiac rear I have been told by several sources, including a GM dealer rep from the time, that the rear end was designed at GM and used up to the 1957 model year. At the time, it was one of the strongest units readily available. Later that year, Ford scooped up several of the GM design engineers, and the in next year couple years, the design showed up (with modifications) as the Ford 9" and derivatives.

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