BLACK Z

My friend buys wreck f bodys, and fix them or use them fro parts, he has a 89 formula that was wreck a month after it was driven off the dealer floor, I know that car has a quick ratio box but he wants that one, but he also has a 88 iroc that he beleives came with 16 in rims, so My ? is how do I know for sure? and should I change the fluid in it? what do I have to get or do to install it? how hard of a job is it? and do i need to get a alignment after it is done? thanks

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86Z28, GM 350, Jet perf Q-jet & chip Dual snorkel air cleaner, Edelbrock performer intake, Edelbrock headers, Edelbrock cat-back, Off road pipe, MSD 6AL, Accel Super Coil, Taylor Spiro-pro wires, Rapid fire plugs, Jet fan switch, World class t-5, Hurst Short Throw Shifter, Ram Flywheel, Center force dual friction clutch,Aluminum drive shaft, BW disc rear 3.45's & a posi, PBR calipers, Earls braided brake lines, Polygrapite bushings all the way around, poly tranny mount & torque arm mount, Hotchkis lower control arms & panhard rod, Rancho limiter straps, KYB struts & shocks, Gm Wonderbar, Edelbrock strut tower brace, SSM sub frame connectors, Jamex lowering springs, Carbon metallic brake pads, Crossed drilled rotors, Mobil 1 Tranny fluid & motor oil, GM syntheic rear end oil, K&N, Grant stering wheel, 1,200 watt system, Jet Black Paint, 91 Z28 rims, 92 wing, Tinted windows.

AlkyIROC

16 inch rim cars should have a quick ratio box. The box will have a large Z cast in it.

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

87 IROC-Z SuperPro ET Bracket Race Car
461 naturally aspirated Big Block

Best ET on a time slip: 11.242 altitude corrected to 10.69
Best MPH on a time slip: 121.52 altitude corrected to 127.76
Altitude corrected rear wheel HP based on power to weight ratio: 504.5
Best 60 foot: 1.546

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

TomP

Want numbers?

I was told a whilllle ago that the quick-ratio box from a 15" wheel'd car has # 7826692 on it. The IROC one (16 inch wheels) I bought had 26000525 and a "Z" on it. One of these days I'll install it!


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

BLACK Z

Where will the Z be? The car I will probably be getting it out is a 88 iroc, And I know that Iroc's in that he also came with 15 inch wheels.

TomP

Like Stephen said, it's cast into the steering box. Take a look at yours to get an idea of where the casting number is placed.

Jza

install tip: buy a tie-rod end puller ($12) instead of a pickle-fork.

BLACK Z

Is the front end going to be out of whack when i am done? Do you change the fluid in these things?

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86Z28, GM 350, Jet perf Q-jet & chip Dual snorkel air cleaner, Edelbrock performer intake, Edelbrock headers, Edelbrock cat-back, Off road pipe, MSD 6AL, Accel Super Coil, Taylor Spiro-pro wires, Rapid fire plugs, Jet fan switch, World class t-5, Hurst Short Throw Shifter, Ram Flywheel, Center force dual friction clutch,Aluminum drive shaft, BW disc rear 3.45's & a posi, PBR calipers, Earls braided brake lines, Polygrapite bushings all the way around, poly tranny mount & torque arm mount, Hotchkis lower control arms & panhard rod, Rancho limiter straps, KYB struts & shocks, Gm Wonderbar, Edelbrock strut tower brace, SSM sub frame connectors, Jamex lowering springs, Carbon metallic brake pads, Crossed drilled rotors, Mobil 1 Tranny fluid & motor oil, GM syntheic rear end oil, K&N, Grant stering wheel, 1,200 watt system, Jet Black Paint, 91 Z28 rims, 92 wing, Tinted windows.

notslow

Are the numbers the same on the GTA close ratio box? I have an '89 and I'm not sure if it is quick ratio. Anyone know the ratio numbers these come in? I would like a quicker ratio box.

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'89 GTA 350, edelbrock headers, 3" exhaust, Flowmaster muffler, Crane HI-6 ignition. My fast car is a '91 NSX, B&M adjustable fuel pressure regulator, Flowmaster exhaust, no cats, Cantrell Concepts Ram air system. Still love my GTA.

Scott_92RS

Did the quick ratio come standard on all IROCs?

Eightyninef

>>>The IROC one (16 inch wheels) I bought had 26000525 and a "Z" on it.<<<

what year IROC did that come from? I checked that part # and it doesn't seem valid.

thx
Larry

TomP

It's off an '87 IROC-Z. I was told that number by another thirdgen owner, who pulled the same box off an '89 1LE car.


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!