7.5 rear ,how many guys here using without problems.
- Thread starter Grandprixpaul
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I've had 3-4 gbody 7.5s crap out behind basically stock engines. Also had 2-3 Hbody ones go on me too. But these were all stock untouched rears that took some abuse.I'm currently running a rebuilt 7.5 (drum to drum) and haven't had any problems yet. But it hasn't got many miles, and hasn't really had a chance to take any abuse from my new 355. I will have to wait and see what happens. Basically the way I see it, if you're running street tires you SHOULD be OK. But slicks and a little power could break it pretty quick.
Well said "Phoenyx"Phoenyx said:
I am getting ready to get a 7.5" to build for my Regal. A guy is selling them here locally for $50 and he has 8 of them
You probably know that torque, especially from a standstill seems to be a killer. A manual transmission shocks the rear more than an auto, and as mentioned already, slicks make it worse.
That being said, my Regal is putting down over 400 ft lbs, and I've got new Mickey Thompson DRs. It has a stock 7.5 with 26 splines - only mod is a girdle.
That being said, my Regal is putting down over 400 ft lbs, and I've got new Mickey Thompson DRs. It has a stock 7.5 with 26 splines - only mod is a girdle.
I've got a locked 7.5 but i dont really beat on it.
The way I see it is they put 7.5-7.65 rears in most g bodies and all iroc and hrs cars which are notorious but getn beat on. So unless your at the track every weekend you will probably be fine. Just my thoughts.
Even if you do blow it up 7.5s are everywhere and cheaper than dirt.
I put a locker in mine from a junk yard 84 trans am for 35$. All depends on your $ flow, how you drive, and what type of mods if any you wish to do to it... More mods I would say go with larger ring.
The way I see it is they put 7.5-7.65 rears in most g bodies and all iroc and hrs cars which are notorious but getn beat on. So unless your at the track every weekend you will probably be fine. Just my thoughts.
Even if you do blow it up 7.5s are everywhere and cheaper than dirt.
I put a locker in mine from a junk yard 84 trans am for 35$. All depends on your $ flow, how you drive, and what type of mods if any you wish to do to it... More mods I would say go with larger ring.
You should read this, from the guys at thrirdgen: http://www.thirdgen.org/beefinguprear
also you can search the internet for beefing up that 10 bolt for some abuse, here is another good write up: http://www.camaroz28.com/forums/drivetrain-44/bullet-proof-10-bolt-you-judge-486663/
also you can search the internet for beefing up that 10 bolt for some abuse, here is another good write up: http://www.camaroz28.com/forums/drivetrain-44/bullet-proof-10-bolt-you-judge-486663/
Weight of the car makes a difference too.
The steeper the gear (higher numerically) the worse the pinion to ring contact is. A 3.23 or 3.42 might be better for the longevity of the rear.
The steeper the gear (higher numerically) the worse the pinion to ring contact is. A 3.23 or 3.42 might be better for the longevity of the rear.
im running a 7.5 rear end with a 373 gear and eaton posi with no issues i use hoosier slicks at the track as well so far so good...
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