Kyle92GT

Damn I havent been on this board in about a year. The kid who I sold my 86 TA to went to have 3.73's installed the other day by a performance shop that i kinda dont trust. He told the kid that he couldnt replace the gears becuase it was a special 1 of 100 Limited Australian Made rears and that they don't accept aftermarket gears? Ok now the entire time I owned the car and i used this forum I have never heard anything like that. Im doin some research so the kid doesnt get ripped off. The guy is tryin to sell him a 9" rear, which is jsut idiotic, a 305 does not need a 9", just extra weight. So is this bull**** or is it legit? im just lookin out for the kid so mommy doesnt have to spend more of her $$$ on his car.
Kyle



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1992 GT, T5, FRP King Cobra Clutch, MAC Cat Back, Off Road H Pipe, K&N, FRP Aluminum D/S, KYB's, FRP "B" Springs, STEEDA adj. quadrant, 73mm Calipers, FRP 9mm Wires, NITTO 555R's

Apeiron

Australian Borg-Warner rears have only a limited number of relatively expensive gear sets available. They're much more common than 1 of 100.

R.O.B.

Yes they are more common than you think. These rear are the 9 BOLT, instead if 10 bolts. These are special in the only respect that hardly anyone makes aftermarket gears for them. Because of this, its like $400 for it.

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Rob
'86 TA 305 TPI
Gutted MAF, Ported Plenum
TB Bypass, Home made Cold Air Intake,
Edelbrock T.E.S.

AlkyIROC

He can swap in any 10 bolt rear from another f-body (dime a dozen) and have the 3.73's installed in it for a lot cheaper than a 9"

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Follow my racing progress on Stephen's racing page
and check out the race car

87 IROC-Z Pro ET Bracket Race Car
383 stroker (carbed) with double hump cast iron heads and pump gas
461 Big Block installed and ready for the 2001 racing season

Best results before the 383 blew up
Best ET on a time slip: 11.857 altitude corrected to 11.163
Best MPH on a time slip: 117.87 altitude corrected to 126.10
Altitude corrected rear wheel HP based on power to weight ratio: 476.5
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley

illegal87

When I was looking for a posi unit for my 1985 camaro. I had seen alot of those 9 bolt australian rearends. Most seemed to have a posi and disc brakes but ****ty gears. Tell him to get a peg leg(single trac),buy gears and a mini spool. Not what I did, although I wouldn't hesitate If I had to do it again. The reason is because these 7 5/8th posi units really suck unless you spend some big bucks.