ive been told i cant swap a posi rear from a 86-89 vette rear into my iroc?? im on a budget so a new rearend is out of the question so im thinking maybe a rearend out of a 4th gen camaro 3.42 gears? or a posi from a 86-90 camaro 3.23 gears? what do would be best???

 

Nope, you can't use a vette rear, they are totally different because the vettes have an independent rear suspension.

I have a broken differential and posi and am replacing it with an Eaton posi unit with Richmond 4.10 gears. It should take a fair amount of torque.

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84 Z28 L69. 5 speed with 3.73 posi (broken)Ported heads, intake, 10:1 comp. 230/230 .480 lift cam @.050" w/108 LSA

Triumph Spitfire SCCA roadracer. 1.1 liter 4cyl w/ 14:1 comp.
turns on rails!

 

put in the forth gen with the 3.42 because irocs handle well with the 3.42

 

Actually rumors to be and going by checking it out myself a few yrs ago a vette rear from late 80's apears to seriously come close to fitting in our cars regardless of what u have been told :-) taking measurements and clearance issues they werent too many problems outside of how to locate the rear end in the car since the vette uses the monoleaf spring other than that it is a doable project....
Back in the day GM used to have a few birds/cams with IRS from vettes in them and was fairly close to making a bolt in kit from GMPP for that purpose , project was never brought to completion but yes it can be done without spending a forutne considerning u can get IRS vette rears from late 80's too early 90's for 400 800 if u poke around
later


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LOOKING FOR FELLOW F-BODY ENTHUSIASTS TO START THIRDGEN CLUB IN NW IN AND FAR SOUTH CHICAGO SUBURBS , DROP ME A LINE IF INTERESTED OR POST ON THE MIDWEST BOARD

1989 Turbo Trans AM
100k and counting it breaks as fast as i wrench:-)
(motor being done winter/spring 01-02)
1991 Formula 350
14.50's at 94 bone stock consistent
daily beater with 45k
SLP catback
flowbooster
ported SLP runners and plenum
MSD6
cold air kit
Spohn LCA/panhard rod and subframe connectors on order
Transgo shift kit from Pro Built on order
ASE Technician
Jaguar Certified Technician

Chat Mod @ thirdgen.org
Moderator NW IN/south chicago board


"If it aint broke make it faster"

 

with a 4th gen rear end and iroc rims, will the rear tires stick out farther than the wheel well?

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87 Camaro LT
bone stock lg4 w/ 700r4
1/4 mile: 35 seconds @ 50mph (or so it feels like it)
mods:
ground effects (in progress)
93 camaro seats (installed)
99 camaro center console (in progress)
85-87 iroc or 91-92 z28 rims (91-92 installed)
white 145mph iroc gauges (in progress)