I just got a copy of the 2010 GMPP catalog ( awesome BTW ! )

And saw they offer a Supermatic 4L70E That is designed for high horsepower street / strip applications.

Anyone know more about this Trans? Im assuming it has a warranty?

Wander if it will hold up to my Plans ( 2000 Z71 5.3 , cammed, Getting a KB Front mount kit soon)???

Wander the cost, and if its priced less than a different brand of Built trans .

I just want thoughts and info on this Transmission please, Not a Buy this XYZ trans or ABC trans.

Thanks!

 

How much is it? If it has a decent warranty Id go for it. Especially if they cover removal/installation when you blow it up.

 

Doesnt List $ Cody, I'll check with my bud at the dealership.

 

OK Just talked to S D P C. Its the M70 4L70E Superduty transmission.

Its basically the TBSS trans. They told me that GM High tech bolted one to an LSX 454 600 horse crate engine installed in a 02 camaro and repeatedly beat on it at the Dragstrip with no issues.

Should work nicely with my future setup ( Turbo , anticipated 500 horse)

Plus this trans has a 3 year 100,000 mile warranty. 2280$ , or 1580 with Core return!

What do you guys think?

 

Thats behind a camaro that weighs ~3500, put that in your EC and I bet it would blow pretty quick. I'd leave the transmissions to the sponsors here that deal with our trucks specifically and have lots of R&D.

 

If you get it installed at a dealer will they cover R&R if you blow it? If they will Id buy one, but if not then Id get one from FLT or Performabuilt

 

Yeah The dealer will warranty it for 3 years , 100, 000 miles.

My Local dealer has a few Bolt on TBSS 's that have yet to have Trans probs.

One blew a converter, but trans is fine.

I think it will work for me.

If it didnt have a warranty i'd prob forget it. But for the money i think it will be great. Im laid off right now and money is a premium.

 

I agree fully.

 

If it's warrantied in your application, then it's a no brainer. I take a GM product over any aftermarket.

 

Yes, this is one reason im leaning towards it also. If it breaks, i just call the dealer and have it fixed.

But im betting it will hold up . I dont drag race all the time, just daily drive, street play. Occasion trip twice a year to the strip.

If they last in a Bolt on TBSS AWD, im sure it will be fine in mine Im thinking.

All opinions welcome. This can be a good discussion