Lethal T56: Any experience?

[navyfc117]

Lethal RPM T56: Any experience?

http://www.lethalperformance.com/sh...s-level-iv-03-04-cobra-t-56-transmission.html

Bought a cobra on Saturday. Sunday night I was doing a dyno pull and it wouldn't come out of 4th afterwards. Haven't really pulled the shifter yet or anything or cracked it open. But in the case I do need a new transmission has anyone tired one of these out? They mention that some of the problems are adressed. I really don't feel like going through the headache of installing a magnum and swapping over to 26spline etc. The car made 533rwhp and about 470tq. I really don't plan on making more power anytime soon. When the clutch is ready to be replaced I will upgrade to a 26 spline then. I just want the car back on the road ASAP.

Thanks

 

[Shadow Grey 03]

http://www.lethalperformance.com/sh...s-level-iv-03-04-cobra-t-56-transmission.html

Bought a cobra on Saturday. Sunday night I was doing a dyno pull and it wouldn't come out of 4th afterwards. Haven't really pulled the shifter yet or anything or cracked it open. But in the case I do need a new transmission has anyone tired one of these out? They mention that some of the problems are adressed. I really don't feel like going through the headache of installing a magnum and swapping over to 26spline etc. The car made 533rwhp and about 470tq. I really don't plan on making more power anytime soon. When the clutch is ready to be replaced I will upgrade to a 26 spline then. I just want the car back on the road ASAP.

Thanks

If you are going to buy a built tranny, buy one with the 26 spline and do the clutch now. I have an RPM built level V and it works great. Plenty of other guys who run RPM built trannies too.

 

[navyfc117]

Does it actually shift better/feel better than the stocker?

Thanks for the reply

 

[KLeech]

I'm pretty local to RPM transmissions and let me tell you they do some freaking fantastic work. Since it's local I hear about a lot of people who get transmissions from them. They build a hell of a T-56, lots of Corvette guys I've talked to around here have nothing but good things to say about them. Definitely get a 26 spline input shaft now, don't wait and have to do it again. With the power you have a hard launch will certainly destroy a 10 spline lol

 

[navyfc117]

Just found out my car already has 26 spline. So at this point it's about the same price to do a magnum. How exactly do you shorten the drive shaft and modify the cross member. Anyone have a link to a good thread? Thanks again.

 

[Shadow Grey 03]

Just found out my car already has 26 spline. So at this point it's about the same price to do a magnum. How exactly do you shorten the drive shaft and modify the cross member. Anyone have a link to a good thread? Thanks again.

You need to find a shop that specializes in driveline work for the driveshaft. My transmission shifts MUCH better than it did stock. Has taken some abuse over the years too.