chevy rules

Wow, this website kicks! I just bought a 94Z in November. I have been playing with 2nd. gens for the last 20 years and figured I better go up a decade. So I bought a car with a locked up LT1. I rebuilt it and was shocked at the parts prices. However I was quite impressed with the car and power. I reset the car odometer with the fresh Lt1 so I could change the oil after break in. After 200 miles I lost reverse. I am sad to see GM still builds a crappy overdrive!!! Causing you to go to a dealer and get updates so it will last. This car has 65000 on the odometer. It is getting tore down now so I will report what has failed.

MachinistOne

Great write-up! I have had a CPT 60E in my car for a few weeks now, and it is an awesome tranny coupled with the pro-torque converter. It's nice to have specialist's on the site so willing to distribute information and help us out.

lefty

thankx for the info on tranys.

Evil Eric

Happened to mine twice, third time the trans went out It lost everything. Wouldnt shift into any gear except reverse, would only move the car about 5 feet then start slipping. Went with a th350 and now its unstoppable.

DarkHorse

Either of the Pros - what kind of power are you seeing these 4L60E's holding up to?

Will they last thru 525rwhp and quite a bit of track time or would it be better to go TH400?

I'd love to keep the OD but the car sees 100's of passes a year.

Loadre

Darkhorse. Only if it has been built by Dana or Frank would I recommend trying a 4L60E with that much power. Plus you can stick a transbrake in a 400

bolek

Planetary gear bearing failure here.

GoFast908Z

Mine will handle 600rwhp+ ( in anticipation of my LS2 402) There are a few guys racing this tranny with 700rwhp+ and its been holding up fine from what i've heard.

Pro Built Automatics

I see they edited out Dave at Rock-On, so much for getting disagreeable and/or accurate/other information. I guess once you "pay", you are no longer able to be scrutinized as for your statements and claims as for what works and what does not work on a particular transmission. Now these "so called" conversations are "no longer" open for real discussion, you either "agree" or are booted off, "if" you are in the same business.

1SlowFormula

Dana, What are you refering to? I can't see anything in this thread that was editied or removed due to any sort of disagreement. I know you and Frank don't always se eye to eye and your disagreements aren't getting edited or removed...

BTW, do you think posting this in a sticky was really such a good idea? Ranting and misc crap almost always gets pulled from sticky's, so they keep to the point of the thread...

GoFast908Z

Um, what does that all mean? Do you have a problem with Dave, or are you saying that someone else does? I think he is a great guy and helped me immensely!

Pro Built Automatics

Dave wanted Frank to back up his statements as to how their products (Trans-Go) were doing harm on the 4L60E's. Nothing else. Yes, Dave is a good guy, and was "very upset" at his reply at being pulled. Nuff, said.

Loadre

I agree, that could have lead to a very fruitful discussion of opinions on being pro/con transgo, etc.

rskrause

I sure didn't pull off any reply. What are you guys talking about?

Rich

12SCNDZ

Ok...Here's the deal with Trans-Go kits. My first experiences with Gil Younger (founder of Trans-Go) started back when they were called No Yo Yo shift kits. That's not a joke ...That was their name. If you ever had the opportunity to read any of old Gils instructions, you'd fully understand that he's somewhere out in left field. This is a man who asked questions in his instruction like, "Is your transmission happy?" I remember his instructions for the 700 that directed the builder to put the car on the lift, put it in manual 1st and pry in on the 2-4 servo, until smoke started coming out the dipstick tube! Pushing in on the servo applies the 2-4 band...that's not supposed to be applied until 2nd gear...NOT manual 1st. He claimed this "cured" the band! NO...THIS BURNT THE BAND!
He used to have us remove the snap ring in the 2-4 servos. This would ALWAYS burn the band up.

OK...Back to present day. Even if old Gil was the most whacked individual on earth, I still wouldn't bad mouth his products, unless there was a good reason. His thoughts on shimming the servo in a 60E will normally result in band failure. He still hasn't caught on to the fact that you should never reinstall the "load release" springs in the 3-4 clutches. As a matter of fact, he supplies a set of stronger springs in his kits. If you use these they will ALWAYS burn up the 3-4 clutches. Vacuum modulator on a 4L60E? Come on, Gil...What were you thinking? One thing a vacuum modulator will accomplish on a 60E is burn it up!

Now, let's get to the real point. Why would ANY professional transmission builder NEED to install a boxed shift kit? I understand enough about how a transmission works so that I can make one outperform and outlast any that someone installing a boxed shift kit can. I can understand many enthusiast on here buying TG kits, mainly because they've became a "buzz word". I've posted quite a bit in the attempts to stop people from installing TG kits. The only reason I've done so is to prevent other members from spending their hard earned money on something that's going to tear their transmissions up.

In comparison, I don't use any boxed shift kits. I make the necessary modifications without them, because I can read a fluid chart and understand accumulator action, fluid pressure, orfice sizes, holding power, apply force, and spring pressures. If anyone has a question about how my transmissions perform or last WITHOUT a shift kit, there's been countless posts from many satisfied customers.

Frank
CPT