P O S I
Thread Starter
Junior Member
Joined: Mar 2006
Posts: 67
Likes: 0
From: Michigan
Car: 86 t/a
Engine: 77 chevy 350
Transmission: stock
Axle/Gears: stock
P O S I
I gotta question about posi, if i was to say, Race a Mustang with a strong 305 in it with posi, What would be the better gears for my 86 T/a, and how much would a new posi rear Cost me? + installation thx
Supreme Member
Joined: Apr 2004
Posts: 1,077
Likes: 0
From: Denver, CO
Car: cleanest '86 sport coupe around!!
Engine: 355ci twin 66mm turbos on e85
Transmission: built rmvb th400 w/ t-brake
Axle/Gears: 3.23
Hey teapot3208, his question is a little cloudy but we can help him...easy answer: 3.42 gears and about 200-300 bucks in labor for the installation.
Thread Starter
Junior Member
Joined: Mar 2006
Posts: 67
Likes: 0
From: Michigan
Car: 86 t/a
Engine: 77 chevy 350
Transmission: stock
Axle/Gears: stock
Sry... bout that last 1 i was Realy realy Drowsy, stayed up all night party'n with hotxx cheerleaders...
But, 1 more question how much would a brand new rear posi unit cost? thx
But, 1 more question how much would a brand new rear posi unit cost? thx Supreme Member
Joined: Apr 2004
Posts: 1,077
Likes: 0
From: Denver, CO
Car: cleanest '86 sport coupe around!!
Engine: 355ci twin 66mm turbos on e85
Transmission: built rmvb th400 w/ t-brake
Axle/Gears: 3.23
unless you get a good deal off ebay, a new (good) one is about mid 300's.
Member
Joined: Dec 2005
Posts: 127
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From: Terre Haute, Indiana
Car: 1985 Camaro
Engine: 350 .030 over (355)
Transmission: 700-R4
You can go to the junkyard and see if you can find a 3rdgen with the gears you want and posi...I found a Z28 with 3.73s and posi for $150 
, but didnt have the money at the time and they crushed it 4 weeks ago 
(of course, i went there 3 weeks ago to get it). I'd go around the junkyards and check them first. You won't have to pay for install or new parts, just get someone to put it up under there. If you can't find one there, then I'd go with new stuff. Looks like I'm gonna have to go with the gettin new stuff route.
Sry if i seemed like an @$$ with my 1st reply.
, but didnt have the money at the time and they crushed it 4 weeks ago (of course, i went there 3 weeks ago to get it). I'd go around the junkyards and check them first. You won't have to pay for install or new parts, just get someone to put it up under there. If you can't find one there, then I'd go with new stuff. Looks like I'm gonna have to go with the gettin new stuff route.Sry if i seemed like an @$$ with my 1st reply.