[sbchevyfan]

Hi everyone,

i'm currently working on my 72 nova with a 8.5", 10 bolt, open dif and 3.08 ratio rear end. I have the opportunity to pick up a complete 7.5" from a friend with posi and 3.73s for next to nothing. What i was curious about is are the drum brakes on the two axles the same? The 7.5 is out of a 79 el camino. If the 7.5 wasnt 4 hours away i would just look for myself but right now thats not really an option. Any help would be great, thanks!

[eloc431962]

Not sure but i wouldn't doubt they would work, But why not keep the 8.5 and add some new gears the 8.5 is a pretty strong rearend i wouldn't swap it for a 7.5 .



Cole

[sbchevyfan]

ya i considered that and if it were simply gears i would just add them to the 8.5...but posi is not cheap to come by these days

[eloc431962]

Either way you need to hang on to the 8.5 IMHO.



Cole

[sbchevyfan]

well it won't be going anywhere other than in the corner of the garage...so in the future if theres more money laying around it might find a way back into the car. i mean the whole differential can be in and out in a couple of hours so its not a big deal

[SSedan64]

The Drums should fit but, the ElCo rear uses a 4-Link suspension & Coil Springs. The Nova uses Leaf Spring suspension, so it wont be a bolt in deal.

[eloc431962]

Originally Posted by SSedan64

The Drums should fit but, the ElCo rear uses a 4-Link suspension & Coil Springs. The Nova uses Leaf Spring suspension, so it wont be a bolt in deal.

Oh good one SS i forgot about that. definitly not a bolt in deal.


Cole

[sbchevyfan]

ya ive already accounted that...ive got a friend who does high performance chassis fabrication who will make every thing fit for free