the 4l60E tranny was taken out after 03 or 04 i believe

 

I doubt that... It's still in the trucks... At the very least 4.3 powered 1/2 tons still have it, if not the smaller V8s... I'd imagine that the bigger V8's get the 4L80E.

Though, I don't have either one.

What did it get replaced with? GM wouldn't likely spend the money to drop an all new transmission into a vehicle they're discontinuing..

 

My Rainier has the 4L60E! The Trailblazer SS got the 4L65E. The Trailblazer 4.2L & 5.3L still use the 4L60E even now. Only the LS-based 6.0L TBSS got the 4L65E...

 

I don't think the 4L60E will ever die... It's GM's most common transmission... It bolts up to pretty much any motor they have

 

does it take into account what mods you have made?? i've been reading on this and cant figure out if it just raises the limiters.

i have a Cobb Accessport, an Engine Management System, for my Subaru. you connect it through the diagnostic access point and the Cobb Accessport downloads its software into the ECU (electronic computer unit). from there you can add mods and use maps in the Accessport designed for each mod.

just wondering if there is anything out there for a blazer that is similer. in case i want to start modding the GFs Blazer

 

EFI Live or HP Tuners are pretty much your only bet for modding like that.

Jet, Hypertech and stuff like that have pre-made "generic" tunes in them.

 

Thanks. I'll read up on those two options.

I know with subaru's, If you start modding intake, or turbo back exhaust system you have to tune for each mod or you'll mess up your car due to the change in air fuel ratio and other variables that get changed with each mod. Does that go for Blazers??

 

Adding an intake and exhaust to the Blazer doesn't really require any tuning... It frees up restrictions in the stock system, letting the engine breath as it should.

It's a little different for your Subie because of the turbo.

 

Got it. Thanks, so will tuning the blazer with the mods help with performance and reliability??

I was never really into cars. Had a 93 subaru impreza L before my wrx and i was into suspension, not really power. Since i've gotten my WRX i've been getting more and more into cars, particularly subaru's. but now that i know what i want to do with my subaru and I cant put in a bigger turbo system until i save up for a 6speed transmission swap, i figure i would mod my GFs blazer. The "modding bug" i tell yeah, once you start, you cant get enough. hahaha

 

A good tune will help any vehicle, even if it's bone stock, but after an intake upgrade, and exhaust upgrade, you don't really need to tune it any...