chadtx01

iTrader: (5)

Well, working on getting the new clutch in. Not the first time I had the trans out, but the first time that I ever paid any attention to it.

Turns out that my transmission isnt a Tremec, its a Borg Warner. Makes some sense. When I bought the car, I went through a few slave cylinders. Turns out that the input shaft on the transmission was from a LT1. It honestly never even clicked that the transmission wasnt a Tremec.

Guess the previous owner toasted his transmission and went scrap yard hunting and pulled it out of an older car.

Not that big of a deal, just a little suprising and figured I'd share.

ZONES89RS

iTrader: (25)

So it is a 5+1 like a richmond?

chadtx01

iTrader: (5)

Its a 6 speed transmission, dont know much else about it. I dont know anything about them.

Friend of mine said he had one in his 95 Z and it was a pretty stout transmission, but I honestly dont know anything about them.

ssman00

iTrader: (7)

borg warner makes tremec to the best of my knowlege correct me if Im wrong and I do believe mine says borg warner on one part of the tranny but it also has tremec stamped on it

chadtx01

iTrader: (5)

I thought Tremec was its own company and I also thought that GM was putting Borg Warner in the F Bodies up until 95 or 96. I dont know for sure, but I know that Tremec isnt stamped anywhere on the tranny, I looked it over a few times.

I could be getting incorrect information from my friends. I'm sure I'll find out quickly one way or another.

2 SLOW

Some ls1's came with a borg warner. My 99 Formula had one....they are better then the tremecs if I recall correctly.

AGRV8D

iTrader: (19)

shoot a PM to Joe and Amber.... they are subject matter experts.

jdoyle

iTrader: (27)

werd on that brotha.

we should start a "just try and stump em thread" haha lol

they would wipe the floor with us.

chadtx01

iTrader: (5)

Maybe they'll see this thread and shed some light on it.

I'm confused now. I know that the transmission came out of a LT1 car, I found that out when I had to replace the input shaft on it.

2 SLOW

My ls1 had a B&W and so have other peoples. It's really not that big of a deal.

chadtx01

iTrader: (5)

I'm not really worried about it, the transmission has held up fine for me. Not saying that some LS1's didnt have them from the factory, but this one started out life in a LT1.

Pwebbz28

iTrader: (31)

LT1 and ls1 input shafts are different. Borgwarner bought tremec awhile back i believe. I would be willing to put money on your car having the same tranny it came with the day it was made

chadtx01

iTrader: (5)

I know that LT1 and LS1 input shafts are different. Thats why I bet this tranny started out in a LT1 car.

I went through 4 slave cylinders because of a fubared input shaft. I still have pics of it sitting next to a LS1 input shaft and it was about an inch shorter. Amber even tooks pics of it when I took it up to them.

Also, the transmission has junk yard markings on the top of it.

I cant see somebody putting a LT1 input shaft in a LS1 transmission. I can see somebody getting low on cash and buying a transmission out of a LT1 from a junk yard to get the car back on the road.

2 SLOW

Yea, with the whole story together it def. came from a LT1. The tranny should hold up better then all the T56's you see shitting out on people constantly.

mitchntx

iTrader: (14)

Borg Warner was still building 6 speeds for early LS1 cars.

Then someone bought out someone, assembly was moved to Mexico and Tremecs began appearing in F-cars.

It was the '99 time frame, IIRC.

Mike96z

iTrader: (78)

Borg & Warner is the Tremec, they are just the ones that build them. Same **** dude.

Mike96z

iTrader: (78)

The only diff is prob the input shaft for the LT1/LS1 years.

Camaroholic

iTrader: (1)

What kind of face plate did you have - LS1 or LT1? LT1 used a pivot arm and separate throwout bearing, LS1 has the hydraulics and integrated throwout bearing. The face plates are completely different. That must have been changed?

As for the 'differences', there are a few minor differences, but nothing that will make a LT1 tranny "stronger" than an LS1. I've seen busted up versions of both.

And my '98 had Borg Warner stamped on the side of it, but internally was identical to later Tremecs that I've taken apart.

1320FEVER

iTrader: (9)

From: http://www.moderndriveline.com/Techn...t5_history.htm


"About 1998, Tremec bought the T5 product line from Borg Warner and have produced the T5 used ever since. Note that the transmission is the same although the case stamp will say Tremec or Borg Warner depending on who manufactured it."

chadtx01

iTrader: (5)

Its got a LS1 face plate on it.

I was talking to Crager last night, and he was saying that the bellhousing would be different from the LS to the LT. But the transmission bolts to the bellhousing fine and the bellhousing bolts to the car fine, but the transmission actually looks a little different than the newer T56's.

Here's some pics of the input shaft that came out of it.

https://ls1tech.com/forums/manual-transmission/503675-pics-broken-slave-cylinder-cause.html

I just cant see somebody putting an input shaft from a LT1 car in this transmission, I'm honestly confused now though.