therobman

iTrader: (39)

here is a 3:23 ring and pinion from a 10 bolt and a 4.10 ring and pinion from a 8.8 rear im putting in

HavATampa

iTrader: (49)

lol....I'm surprised those of us with 10 bolts still, make it out of our driveways without breaking. What a pathetic little POS that GM gave us.

whytryz28

iTrader: (28)

Well time to build up that 8.5 and throw it in.

Wesmanw02

iTrader: (4)

What a difference 1.3 inches makes. Damn.

Latch

iTrader: (8)

The GM bean counter who made the decision to put a 7.5" rear in our cars should have been taken out back and shot.

Duffster

iTrader: (103)

I thought it was the flexing of the tubes in the pumpkin. . .

N20zuki

Makes me wonder how mine is still together... Im not nice to it and its been howling for almost 20k miles...

Jonnie Bravo

iTrader: (3)

Love the comparison picture, it speaks volumes seeing them pictued together like that!

BlkBird2000

iTrader: (10)

10 bolts are just fine for street driven cars with no hard digs. Still a weak pos. But can hold a lot of hp if used for highway pulls.

Randy WS6

iTrader: (69)

Thats why i love my 8.8, and ive been cutting 1.30 60ft. with wheel stands and its still quit as a mouse.

Kevin01Z28

iTrader: (8)

GM really f'ed that one up...

Mattn

i hit hard on highway every couple of times.no problem i ever had.its mostly just cant take the shock abuse or doing burnouts and wheelhoping.

TransWS6Am

iTrader: (41)

yeah i hate 10 bolts.... my car has been sitting for almost 2 months now because of a weak *** 10 bolt. But i live in Michigan now (was in San Diego the last 6 years)so i gotta put the car up for winter anyway, Gonna be ordering a MWC fabbed 9" around February so i can have it by the time it starts getting warm again.

zach_ws6

iTrader: (3)

embarrassing.

SoxXpupPeT

iTrader: (34)

Stupid GM... Could you imagine how much better life would be for all us F-body guys if they put an 8.5 in it ?.... when i compared my 8.8" ring gear to a 7.5" ring gear.. i was shocked.

pro94lt

couple years back my wife had a blazer with the 7.5 she put it in drive while rolling backwards about 1mph and it snapped the some teeth off the pinion, what was ironic at the time was I had been beating the hell out of mine for a couple years with no probs, it also soon broke when I hit second. but man that really is a shame, it would be neat if someone at gm would reveal what went into the thought process of putting their weakest rearend ever into some of the quickest cars they had ever built.

bayer-z28

iTrader: (14)

One of the main reasons the 10b is weak is because the HOUSING is weak (not to mention the guts.)

When you dump it from a dig with sticky tires, the housing has a tendency to flex toward the front of the vehicle which actually tightens the clearances between the ring and pinion = kablooey... "Pivots" at the housing, axle tubes move forward. (IIRC)

As far as GM goes, I'm not sure exactly WHY the Fox Stang 7.5's are so much stronger than ours. My buddy has been beating the SNOT outta his 88GT for years now and no rear troubles. Every time I see him he's buying new tires. That's two things we got shorted on. Rear and brakes. I'm really not fond of my stock brakes even with pads, lines and rotors.

NSTY Z

I got a 10 bolt with 140000 miles on it and welded axle tubes and still able to spray 200 shot out of the hole with a 1.45 60 ft thanx to wolfe race craft drag suspension.I dont spec it to run forever but its still going strong.knock on wood.

Latch

iTrader: (8)

Actually, Fox bodies got 8.8" rears, obviously to deal with the awesome power they put down... 200 hp to be precise.

Lots of Ford cars and trucks got 8.8s from Explorers to Town Cars.

88blackgt

foxes had 7.5s for almost a decade, up to 86 iirc