hello, im new to this forum and it seems where i could get some help in getting started in the right direction with my project. I have a 2000 silverado 2500 light duty and just recently finished my front mount turbo set up and gave it a go. The shifting was firmed up by the computer and shifts fine while not under boost. Today i was rolling ( 45mph) and got on it as a truck tried passing me thinking i would eat it alive but here i barely moved. I originaly thought my tires were spinning from the smell but what are the odds of spinning tire from a 45mph roll?? Which brings me to the conclusion it would be my transmission needing a shift kit?? Im only running 6psi and from reading in the forum it sounds like the 80e's are tough transmissions and could handle that, but im thinking my could use a shift kit seeing as how the truck has 125k on it and i dont think it has ever been rebuilt. What should i do guys? Any help is greatly appriciated. Thanks.

 

the 4l80e is not invincible, and can and will fail. Especially a 9 year old transmission with more than 100,000 miles on it. There's a theory going around that the 4l80e is hyped up as more stout than it really is because we never hear of many failures because the vast majority of people run 4l60e's. If your transmission was slipping so bad that it was burning, I doubt a shift kit is going to fix that. The good news is you can get a low mile 4l80e junkyard for $600-800 and it should hold up with a shift kit to your setup.

 

Wierd,I thought all 2500-3500 pickups were OBS until 2001.My 2000 model 3500 is an OBS with the 454/4l80e

Spinning your tires from a 45mph roll isnt impossible.

 

Well said. 80's have their share of problems as well. The only thing that scares me about junk yard units is really what is their condition? You never know without opening them up and inspecting. At which point freshening them up or having them built IMO is a good idea. Vince B

 

would it be worth while to rebuild my transmission and install a shift kit with the rebuild? also what components will i need to make this transmission handle the turbo? and what exactly does infact come with a shift kit? any websites with shift kits/rebuild kits i will need? and i checked the transmission fluid and smelled it and it did not have the smell that i was smelling when the truck was acting up. wouldnt that strong smell stay in the fluid?

 

You might have been spinning

 

If you do decide on a rebuilt unit, I'd contact the good guys over at FLT (Vince posted above you there ), their reputation is beyond excellent and the customer service is top notch. I'm currently paying off one of their Level7 65E's

 

what is the best website to get a rebuild kit from that will be able to hold my turbo application?

 

My truck will light the tires from 60 mph.

From a 45 mph roll, it will indeed blaze them off. VERY possible that you were spinning...

 

Maybe try www dot oregonperformance dot com