PDA

View Full Version : TC rear



capitlj
02-28-2005, 10:40 PM
Is a TC rear like a posi readend or is it just geared different

CougarSE
03-01-2005, 12:24 AM
I'm sure erics site has that info.

jimfulco
03-01-2005, 01:16 AM
Both.

lowcat
03-01-2005, 01:19 AM
8.8" axle with a 3.55 or 3.73 gear, Traction-Lok, and disc brakes (http://www.coolcats.net/tech/advanced/tcaxle.html)

I believe the auto's got the 3.55's and the manual's got the 3.73's.

Bob
03-01-2005, 10:08 AM
believe the auto's got the 3.55's and the manual's got the 3.73's.

:nono:

auto 373, 5speed 355

shame302
03-01-2005, 10:58 AM
auto 373, 5speed 355
yup.

posi is a chevy term btw. trac loc is ford. means the same damn thing though.

BTW..thunder306. looks like you have done the 5 speed swap. what gears are you running? i have a turbo coupe rear end almost ready to go in place of the 273 7" rear but its 373. im thinking its going to ba a little steep. what rpm are you at say 65-70 in 5th?

Steel Wheels
03-04-2005, 10:48 PM
The 86 Turbo bird came with a Trac loc 7.5", 3.42's, 10" drums

TurboCoupe50
03-04-2005, 11:09 PM
yup.

posi is a chevy term btw. trac loc is ford. means the same damn thing though.

BTW..thunder306. looks like you have done the 5 speed swap. what gears are you running? i have a turbo coupe rear end almost ready to go in place of the 273 7" rear but its 373. im thinking its going to ba a little steep. what rpm are you at say 65-70 in 5th?

I have the 3.73s with a AOD, but OD is approx the same... I'm turnin' around 2400 at 70mph which ain't nuthing. Try running 4.30-4.56s without OD like we did in the old days. Can you say 3500-4000 rpms?? Your problem is gonna be the very short 1st gear. With most 5.0 T5s having 3.35 first gear, wound up tight you may get 25-30 mph in first out of a SO 5.0....

My guess is you'll be happier with the 2.73s. I used to have a stock 5.0 Stang with the 2.73s, they worked fine and it would run mid 14s all day long... Just tell everyone you have 3.73s, they will think you are cool and won't know the difference..

shame302
03-05-2005, 01:40 AM
Just tell everyone you have 3.73s, they will think you are cool and won't know the difference..
lol...its easy enough too swap back. i dont mind the 273s for right now. they are actually nice on the street. i do want the 8.8 in there so im thinking maybe 3:08 or 327s in place of the 373s. im most likely never going to run big slicks at epping if i even go up there so i dont think ill realy need the gearing. i think its a little over rated. its pretty annoying to have such a short 1st gear. had a turbo coupe with a 5.0 HO and a 5 speed but it had a 4 banger tranny. 1st was pretty much useless.

SpazNigga
03-05-2005, 05:06 AM
dont mean to hijack or steal the thread but i was just wondering, i bought a turbocoupe rear with the 373s a few months ago that should be goin in soon replacing the 7.5, what can i expect with the better ratio on my setup. just a reminder, its a '95 3.8 sc in an '88 ls with a recently rebuilt lsc aod tranny and new(shortened cuz of the new tranny) driveshaft. thanks

TurboCoupe50
03-05-2005, 07:15 AM
Spaz.... The SC 3.8 will love the 3.73s. The AOD only has a 2:46 first gear, so us push-n-go(automatic) guys need plenty of gear to get goin'...

SpazNigga
03-07-2005, 10:51 PM
really...i was hopin so, so i should notice the difference? ima try to get that in real soon then. i was at my mechanics today and he told me they caught a couple bone yard guys tryin to make off with it a couple times....they got it chained up now out back so i gotta get that in before they steal that shit

shame302
03-08-2005, 12:46 AM
really...i was hopin so, so i should notice the difference?

you wont be able to wipe the smile off of your face for hours