Hey guys, I need some help here. I need to know where to pick up some gears for my car. I can't seem to find them anywhere. I have an 88 Iroc w/ a BorgWarner 9 bolt rearend. Any help is appreciated. Thanks.

------------------
1988 Iroc-Z
L98 350 TPI
700R4 Tranny
2.77 gears(will change)
--------
Mods: Crane CompuCam, headers, gutted air boxes
Best e.t.: 14.49@95.5mph
60ft.@2.27(was 2.12 w/o cam)

 

Since you have 2.77's to begin with, you need to change everything out from a 3.xx unit. Then you can upgrade to either 3.45 or 3.70, I believe.

Or you can go shop in Australia for more choices.

------------------
1989 IROC-Z 5.7L
NOS 150HP kit
ProBuilt 700R4, PI Vigilante 2800 stall lockup
Baer Brakes 12" Sport System

 

you'll need tto find a used 9 bolt wth at least 3.27's to modify unlike a 10 bolt nobody makes thicker ring gears to offset the difference in carriers i changedd my 2.77's for 3.27's not hard just gotta find a wrecking yard with a few 3rd gen's...

------------------
87 trans am,gm crate 350(4 bolt mains 10to1),L98 aluminum heads,LT4 hot cam,slp runners,slp 1 5/8 headers,3in.y-pipe,edelbrock base,hi flo cat,air foil,afpr,as&m ported plenum,gutted airbox,t-5 tranny w/centerforce clutch and a 3.27 9bolt(11.9in. brakes),ed wright's fastchip,relocated iat sensor,160 fan switch,tb bypass,accel supercoil,cap& rotor,hollowed maf,slp 3in. catback,a/c delete.

shooting for 13's!!!!!!!

14.10@97mph w/2.01 60'(auto ET)

slp catback is finally on!!!
fastchip prom is in.
kicks you in the A.S.S at wot.
FLOWMASTER S.U.C.K.S

 

I am working on it. Just be patient.

Miles

------------------
88 427 Camaro
12.18 @ 113mph 1.75 60ft
Currently installing 3.73's into my 9 bolt (YES,it is a 9 bolt & YES they are 3.73's, not 3.70. 4.11's to follow soon )
www.koolmeister.com