I was hoping to get one w/ 3:73 gears.

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'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
FLOWMASTER
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
2:73 GEARS
Rebuilt 700R4, with manual valve body
B&M Megashifter
Soon to be installed
and Exhaust Cut-Out
"There is nothing more addicting than speed"

 

yeah me and my roomate have. it wanst brandnew, but it was worth the money. why, whats the problem?

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click below to check out....
www.formula350.com

or click below to email me
webmaster@formula350.com

 

Nothing is the problem, I was just wondering if anyone has had experience buying used rear ends from a junk yard, I don't want to buy it if I install it and it is junk.

------------------
'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
FLOWMASTER
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
2:73 GEARS
Rebuilt 700R4, with manual valve body
B&M Megashifter
Soon to be installed
and Exhaust Cut-Out
"There is nothing more addicting than speed"

 

Nothing is the problem, I was just wondering if anyone has had experience buying used rear ends from a junk yard, I don't want to buy it if I install it and it is junk.
How much did you pay?

------------------
'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
FLOWMASTER
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
2:73 GEARS
Rebuilt 700R4, with manual valve body
B&M Megashifter
Soon to be installed
and Exhaust Cut-Out
"There is nothing more addicting than speed"

 

I bought a junkyard rear end for my old 89 IROC-Z. I ended up getting a 2.73/drum/open rear out of an early 80s firebird because that is all they had, and I was in a hurry. It worked fine for as long as I drove the car. Some junkyards will give you a 90-day warranty or something similar. Just ask them before you buy...

 

When buying the rear from the junk yard, the 4-6cylinder cars usually have 3.42-3.73 gears. After the purchase just buy the posi unit or just smoke the helllll out of the peg leg!

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86 Tramaro 90% Trans Am/ 10% IROC/Z (nose, hood,& fenders)
Trans Am Mods as of 1/10/01
3inch
T.E.S/Flowmaster setup,gutted cat,gutted maf,relocated mat,373 gears,upgraded factory chip,255 liter h/press. walpro f/pump & throttle body coolant bypass
njdaewoo@excite.com

 

I got a open 3.42 set up for my car. I got it off of ezfindparts.com for about 300. They have a lot on there with low mileage. Mine had about 30,000. The drum brakes were toasted but I just replaced the cylinders and a few other odd parts and haven't had problems yet.
bsa

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"If they do not run, Then they will die." - Stonewall Jackson
#3
'87 IROC, 355 TPI, Converted to SD, 700R4, B&M Megashifter, 3.42, Trick Flow Twisted Wedge Heads, Edelbrock Intake, Accel Runners, Comp Cam, Crane Gold rockers, Lucas 23# injectors, Edelbrock headers, Flowmaster 3'' exhaust, Mallory Ignition, Transgo Performance Shift Kit, Corvette Servo, 2,000 Stall Torque Converter

 

Make sure you calculate what the ratio is approximately w/ the mark driveshaft/rotate tires routine though.

My first rearend I went to the junkyard to get was supposed to be a 3.73 diskbrake rear. I got it home and noticed that it was in reality somewhere well into the 2s. Like a 2.4x or something (I think there is a 2.41). Anyway, it most definitely was not a 3.73 rear.

Luckly they took it back and gave me my money back. I ended up getting a 3.42 open rear w/ drums from a v6 car from them for $100. I then threw in a PowerTrax Lockright unit ($300) since a peg leg rear simply won't cut it. So for $400 total I had a 3.42 posi-type setup.

That beats trying to swap a decent gear and posi carrier into your current rear. I know, because I spent like $600 having 3.42s and a posi put into my IROC earlier. By the time you figure the gears, the posi carrier, the install kit ($100ish) you're already not looking so good pricewise and you still have to get it all installed (labor cost me $250).

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Ray87Z
-Vortec headed 350.
86 IROC w/ a cammed 305 TPI.
Formerly Ray86IROC.
www.inter-scape.com/Ray

[This message has been edited by Ray87Z (edited June 03, 2001).]