Chet1185

Found a 3 channel rear from an 01 trans am. Looking to swap it into my 95 TA with a 4 channel. I know I can put a 3 in it but wasn't sure about the years.

Thanks in advance.

Injuneer

I would think that to keep your 1995 ABS+ASR (TCS) you need in independent signal for the speed of each rear wheel. Have you found a way to make the single rear channel on the 2001 rear feed both signals to the 4 channel EBTCM? What about the huge mismatch in number of teeth on the 3-channel rear reluctor vs. the 4-channel reluctors?

Haven't heard of anyone doing this, but I suppose anything is possible. If you have a link to a "how to", let us know.

If you keep the 2001 brakes, I think you have to alter the e-brake cable. On the other hand, since your 95 has separate hydraulic lines for each rear brake, and the 2001 only has one brake line teed to both brakes, it would probably be a good idea to keep your 1995 brake system in entirety.

FirstYrLS1Z

Probably a question is first in order,why are you replacing the rearend ?
Typically in the LS1 realm(98-02),a 3 channel rearend assembly can be used in a 4 channel vehicle by pulling the axles(that have the reluctor rings) and backing plates(that have the sensors) from the 4 channel rearend and using them in the replacement 3 channel rearend. That maintains the 4 channel situation. In your situation,I don't know the compatibility of LT axles in a LS housing. They're compatible as for as spline count for into the carrier,the 95 has an Auburn carrier(if it's an LT1 car),the 01 would have a Torsen carrier. Axle bearing surfaces would be at the same location. The length(s) would be of concern.

Chet1185

Would a 4 channel no matter the year work?

My rear is fine just has 2.73. I want to upgrade to the 3.42.

FirstYrLS1Z

the preference would be 95-97.
the 4 channel sensor for 95-97 is GM 10456264,for 98-02 is GM 10456535. potentially could have a different harness connector.

Chet1185

Ok, I found a 4 channel near me. I'll have to find out the year.

Chet1185

It's from a 99. Mines a 4 channel so is this one. According to this thread I will just need to swap my axels and backing plates so my brakes fit properly.


https://www.camaroz28.com/forums/drivetrain-44/stock-ls1-rear-end-lt1-301070/

rngilliland

The 3 channel you found will work if you use your 95 axle shafts, backing plates, brakes and brake lines. Just use the axle housing with differential and gears. Swap everything else from your 95 to the new axle housing. You should be able to do it without disconnecting any brake lines. That way you don't have to bleed the brakes. Any shims between the axle housing and the backing plate should be kept with the housing they were originally on.

A four channel from any year should work but I don't know for sure. If you end up using an axle with LS1 brakes you will need the parking brake cables and brackets from the LS1 axle.

You will need to have your PCM flashed for the new axle ratio. You also need to have the shift points adjusted. If you have Tunercats it can be used to adjust for the new ratio. It also has a tool to change the shift points when you adjust for the ratio. If you adjust the speedometer, without changing the shift points, at full throttle the trans may not shift up before you hit the rev limiter.

Chet1185

Thank you for this info. The rear I'm getting is a 4 channel. So, swap axels and backing plates and I'll be good.