Question For The Board

[my85buick]

im building a 383 chevy stroker for my 85 buick,ive been told that a 7.5 eaton posi with moser axles would be plenty strong enough to use and would not break......any input or advice would be helpful

 

[buickbert]

my advice is to put this in the general auestion section, not the parts for sale section. :biggrin:

buickbert

 

[chris]

I've got some new moser axles for a 7.5 inch rear if you haven't bought them yet.

 

[Blazer406]

my advice is to put this in the general auestion section, not the parts for sale section. :biggrin:

buickbert

He's right.... but I wouldn't waste any money on the 7-1/2" .... while some people have gone fast with it.... it is definately the exception.. not the rule. Just a few aftermarket goodies... and you could buy stock 8-1/2" rear end that will take quite a bit of abuse... in stock form... just my 0.02

If you didn't put any sticky tires on it however...... it might hold up for awhile....

 

[tjthorson]

I had an 83 Regal that I built a 385 Stroker for... I even had too hot of a cam with too small of heads. I used a 280 Magnum cam with the 1.94/1.50 iron heads. I topped it off with a carter 650. It ran OK, but it seemed like the heads ran out before the cam really started pulling. It did have monster torque off the line. First I broke the 7.5 open rear with the 2.x gears. I found for $75 a 7.5 rear with 3.42 gears that was posi. Broke that one too. Before I sold the car, I had rebuilt it with 3.23 gears and the Auburn posi carrier. It seemed to be better, but I never pushed it.

The best the car ran was a 14.1 @ 94 on the 3.42 gears, so that tells you I really wasnt making a lot of power...

If you are going to build it right (and not on the cheap like me), that 7.5 won't last, unless you really baby it.

I never ran slicks. Mine always broke at the same point, the 1-2 shift. Car would shift, and I would hear marble noises and come to a halt. I always scattered the spider gears inside the carrier - and those would invariably take out the ring and pinion...

Just find an 8.5 and be done with it.

 

[Little6pack]

I would say ou can use yor setup but when it breaks on the next go around Buy a bigger rear end.

now here is food for thought. In my 1981 regal w SBC for a whole summer/fall I had a 4:11 in a stock 7.5 rear. I raced that puppy on the sreet/ drags/ & oval Drags. It never broke under all that abuse!