3rd gen camaro rearend
 

Did GM ever put a bigger rear in a 3rd gen Camaro than the 7.5 in. that's in my 90 IROC?

Re: 3rd gen camaro rearend
 

Mike,

no, and it would have been a great thing if they had.

For a stocker build a 12 bolt housing bolt in upgrade is the usual option.

Re: 3rd gen camaro rearend
 

So I 'll have to go aftermarket, Moser, Strange. Are those legal for stock?

Re: 3rd gen camaro rearend
 

Some Pontiac Firebirds, and Trans Ams came with a 9 bolt "Australian" rearend, which I think was a Dana 44 .

Re: 3rd gen camaro rearend
 

Mike,

aftermarket replacement housings are OK.

Re: 3rd gen camaro rearend
 

There was actually a Dana 44 availalbe for a short period of time in the '83-'86 time frame. I have seen a couple, but they were OTC and few were sold.

Re: 3rd gen camaro rearend
 

the aussy 9 bolt is stronger than you would think, in 88/89 I had strange make a set of axles for it, lack of gear ratios was a downfall but the car did run well into the nine sec range at almost 145 mph at 3700#'s

unless the car has it already (the OP does not) I would not waste my time with that though when better housing choice are available

Re: 3rd gen camaro rearend
 

Thanks guys for the info. I have all winter to think about a rear end for this thing, it's one of the last things I'll have to do anyway.

Re: 3rd gen camaro rearend
 

If you can find a 69',70' Chevelle rear end they will fit with a little fabrication. They are an inch shorter backing plate to backing plate than a stock Camaro 7.5. I went this route when money was tight 15 years ago. If you have the money just go with an aftermarket piece. I used the stock axles and mini spool with steel caps for a couple years then went to Moser axles and spool. As I remember the cost then with mounting and rear end cost was $540 before the mini spool that used the stock carrier. Good Guys Race Cars in Houston did the work.

Re: 3rd gen camaro rearend
 

How strong is the 7.5 rear end? will it stand up to a 305? The lowest gear I can find for it is a 4.56, not sure if that'll be enough.