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i have a tired 60e thats hitting the limiter on 2-3 shift, and i know it needs a rebuild. looked for a good kit online to order and seeing what ppl recommend?????
I am sure you will get a lot of differing opinions on rebuild kits. I use a basic rebuild for all the seals, gaskets, pistons and filters. I use Sonnax Performance Pack reprogramming kit. I use a Raybestos Z-Pak for the 3-4 clutch and a Borg Warner 2-4 band. I am sure one of the sponsors will have many of these parts.
I am sure you will get a lot of differing opinions on rebuild kits. I use a basic rebuild for all the seals, gaskets, pistons and filters. I use Sonnax Performance Pack reprogramming kit. I use a Raybestos Z-Pak for the 3-4 clutch and a Borg Warner 2-4 band. I am sure one of the sponsors will have many of these parts.
Hey bro, the Z pack used to be my go to because the friction material is the best you can get. However, the GPZ frictions use the same material and an 8 stack with steels instead of that single sided friction will hold up far better. I've had a few of the Z pack slip and "cone" then burn up. Never had a gpz pack burn up.
Everything is going to "cone" in this application (3-4 Clutch Pack)...
It is unavoidable.
The 3-4 Clutch Pack can last coned without issue.
I have taken out countless good 3-4 Clutch Packs that were coned...
Put them right back in on a refresh/ rebuild, and have no issues at all.
Everything is going to "cone" in this application (3-4 Clutch Pack)...
It is unavoidable.
The 3-4 Clutch Pack can last coned without issue.
I have taken out countless good 3-4 Clutch Packs that were coned...
Put them right back in on a refresh/ rebuild, and have no issues at all.
wait. What? Reused a coned 3-4 clutch pack? Everything is going to cone? Say what? I think you might be talking about something else. If the clutches and steels ar shaped like the Belleville plate in the reverse input drum, there’s no damn way I’m reusing that and thinking it’ll be ok. If you are coning clutch packs, you are using too thin of steels and top and bottom plate. I’ve never taken apart a unit to see a coned clutch pack and remotely consider reusing that. I’ve pulled my gto trans apart a couple times and the steels and clutches were not coned. I dunno, I think we may not be on the same page. Lol. The only time I see coned 3-4 clutches is when they are smoked or someone used a crappy z pack.
I am not talking about something that you will notice by eye...
But put the Frictions and steels on a Truing-Table/ Truing-Plate... and they are indeed Coned.
Dana PBA (ProBuiltAutomatics) will tell you the exact same thing.
Please ask him if you doubt me.
lol. I was talking about like this: (I’ll try to find a side pic to show the warpage) but my whole point was, the z pack is a weak (but good grabbing) clutch pack that cannot take much abuse. If it get heated, it will warp and come really bad and then be toast. I used to think they were the ticket. My go to now (besides a 4l79 drum) is a GPZ 8 stack with kolene steels. I know it was mentioned here some don’t like the kolenes, but that’s what I prefer because it works for me. I had a simple 8 stack in my gto trans (before it got built with a 4l79 and sonnax shafts) and that 8 stack held up without burning up behind at least 500 wheel. 4000lb car, trapping 128 mph with a 2.0 60ft. And not to mention a loose nut behind the wheel.
lol. I was talking about like this: (I’ll try to find a side pic to show the warpage) but my whole point was, the z pack is a weak (but good grabbing) clutch pack that cannot take much abuse. If it get heated, it will warp and come really bad and then be toast. I used to think they were the ticket. My go to now (besides a 4l79 drum) is a GPZ 8 stack with kolene steels. I know it was mentioned here some don’t like the kolenes, but that’s what I prefer because it works for me. I had a simple 8 stack in my gto trans (before it got built with a 4l79 and sonnax shafts) and that 8 stack held up without burning up behind at least 500 wheel. 4000lb car, trapping 128 mph with a 2.0 60ft. And not to mention a loose nut behind the wheel.
I block or true up even brand new pressure plates. You would be surprised how much they are coned, right out of the package.
i have a tired 60e thats hitting the limiter on 2-3 shift, and i know it needs a rebuild. looked for a good kit online to order and seeing what ppl recommend?????
I'm in the same boat, looking to learn more about the 4L60E and various part offerings. In my rather limited research so far, I've come across some great threads and links which I think you will find of interest.
I'm in the same boat, looking to learn more about the 4L60E and various part offerings. In my rather limited research so far, I've come across some great threads and links which I think you will find of interest.
FYI you have a 1993/1994 edition of the 4l60e technicians guide.
Most eaily ID'd by the TCC Regulator valve being called a CC Signal valve.
No TCC pwm solenoid.
Note that there are newer versions as well.
It's easy to fill a bookshelf when acquiring all of these. I have a whole shelf full just for GM units I work on...ford and chrysler books I keep in a box and only review when extremely bored haha
If anyone has a cool GM Manual they want to sell, if I don't have it on my shelf...slide in the DM's and let me know!
02-06-2023, 01:09 PM
best reuild kit for 4l60e 
