posi= gears?

**96cherrybird** · 01-19-2010, 12:01 PM

in a v6 firebird will just changing the gears in the rear to 4.11 or 3.73 give me posi?? will i need diff axels as well?? any help appriceated because im totally lost in rear ends
tks in advance

**96cherrybird** · 01-19-2010, 12:11 PM

better yeet what is needed to posi a v6(for now) firebird

**sunsetorangess** · 01-19-2010, 12:17 PM

Posi Ten bolt out of a stock Z-28...
J

**joedude02** · 01-19-2010, 12:35 PM

Originally Posted by sunsetorangess

Posi Ten bolt out of a stock Z-28...
J

**Wesman** · 01-19-2010, 01:48 PM

Originally Posted by 96cherrybird

in a v6 firebird will just changing the gears in the rear to 4.11 or 3.73 give me posi?? will i need diff axels as well?? any help appriceated because im totally lost in rear ends
tks in advance

You would need the gear set, as well as the differential itself. Axles should be the same.

Or, as the other guys said, just get a complete rear out of any 98-02 V8 F-body that has the same ABS system that you have (3 or 4 channel).

**Spikito** · 01-19-2010, 05:16 PM

so Z's came with posi and and v6's came with LSD?

I was just wondering about this the other day

**Orcus79** · 01-19-2010, 05:25 PM

posi and LSD technically are the same thing, though some of the older guys will argue that. As far as I know, unless the performance axle option was picked, the V6s got the open rear diff.

**Spikito** · 01-19-2010, 06:15 PM

ive always thought LSD was close to full posi, but they work a little different.

Im thinking on a lift, with LSD if you turn one wheel, the other spins opposite, with posi they roll the same.

**Wesman** · 01-19-2010, 07:07 PM

Originally Posted by Spikito

so Z's came with posi and and v6's came with LSD?

I was just wondering about this the other day

Positraction and Limited slip are essentially the same thing. Basically a type of differential that distributes torque to both wheels, instead of just one wheel as in an open differential.

All 98-02 V8 F-bodies came with limited slip differentials, early models were clutch type (Auburn), later models were helical gear type (Torsen).

A select few V6 cars were available with limited slip diffs, I believe it was part of some "performance package".

**96cherrybird** · 01-23-2010, 11:06 AM

im thinking to just get the diffriential and gears shipping out here in ns for a whole rear end is expensive.. just getting that and i should be good to go correct!? any recomedations on diffs im looking at summit racing website and they seem to have a good selection and decent prices. thanks for all the help

**Cutlass** · 01-23-2010, 12:07 PM

Dartmouth, Nova Scotia?
Just FYI, rear end gears require a precise install and setup. If you don't know how than find someone who does. Or find a whole rearend assembly at a junk yard