4L30-E Transmission Heritage

[majork]

The 4L30-E transmission is apparently a GM transmission that has been used in Isuzu's and some GM cars going back to 1990....

Others have referred to it as a robust or burly transmission...

Whats the heritage of the transmission and was it modified from its early versions for use in the Vehicross...

I did find a GM transmission manual for it on the web, but I havent been able to find a history of the mods to the transmission...and its particular application in the Vehicross

[SGT.BATGUANO]

bmw z3 and some others. try a search

[thebear54]

The 4L30-E tranny is definetly of European Heritage. The unit is built by GM of France (go figure?). You might be able to find something on the GM europe web. Personally I can't imagine a tranny that big and tough being used on your daily european driver(which only weighs a few 1,000 lbs and can seat only two with a bag of groceries),but I can imagine it on only the top of the line cars. Check it out.
John

[majork]

Well thanks for the tips.....but my google searches have not hit the jackpot yet....

GM Powertrain site doesnt list the tranny since I presume its out of production..they list the 4L60, the successor I guess.....

GM france is not listed on the main GM webpage as a link....

If anyone has specific links to 4L30 archives or repositories

bring'em on

[Joe_Black]

If you do a search for "4L30E" on eBay you'll see quite a few of the models it's been used in as many are selling rebuilt units and listing the compatible vehicles.

You may want to Yahoo! "4L30E" and "Torque Converter" as that will point you to a few who provide performance and HD torque converters. Contacting one may yield some insider info to the tranny's background.

[Maugan_VX]

Joe:

Are you saying that people made aftermarket performance parts for the 4l30e?

I was under the impression that nobody cared about the poor thing anymore.