To skip this section and get straight into the potential transmission problems, please click here. Before examining the different 4L60E transmission problems you might be having, it’s important to understand how the transmission works and the history of the 4L60E. We will look at a few symptoms and what that might mean for your transmission.įor all the information and specifications for the 4L60E transmission check out Reman-transmission. In this article, we will take an in-depth look at the 4L60E transmission, along with some of the more common problems associated with it. They're where I get all of my stuff from and have great prices.If you have 4L60E transmission problems, you’re far from alone. I would suggestion looking up Oregon Performance Transmission for rebuild parts.
4L60E TRANSMISSION PARTS UPGRADE
(aka sun shell) The OEM one is a known failure point, and the aftermarket has solved that with various upgrade pieces. The only thing really worth upgrading internally for a stock or near stock engine is the reactive shell. With a rebuild kit that includes all new clutches (duh), thrust washers and especially seals, you'll have a good piece on hand. Since you have two transmissions on hand, I'd use the planetaries, sun gear and reactive shell from the 2000 in the rebuild of your original transmission as those are upgraded parts from GM. Like I said, you're going to be rebuilding it anyway. The valve body from your 94 will not interchange with the case of the 2000 because on 96-up transmissions, the TCC apply valve is in the valve body, and in 1993-1995 transmissions it's in the pump housing itself. To answer your questions in reverse, you can't do that. If you were to grenade a set of planetaries for example, a GenIII transmission is a great source for OEM upgraded parts on the cheap.
4L60E TRANSMISSION PARTS PLUS
*edit The only reason I went that route to begin with is I was able to pick up complete late model units with upgraded hard parts and miscellaneous stuff I needed for like $75, plus I'd have spare stuff for rebuilding transmissions of later years on hand. It's confusing and you just wind up with a frankenstein. For a couple of years recently I kept two on rotation because I broke so many parts, so I've been down the route of picking up used transmissions on Craigslist from various years and swapping parts until I stopped beating on it so much. You're honestly better off though ordering a complete rebuild kit and rebuilding the one you already have in my opinion. Output shaft, planetaries, reactive shell, sun gear, etc all can be used on older models. (to simplify it, all the round guts will swap just fine, including the torque converter) Want more confusion? You COULD use everything out of the 2000 transmission you bought EXCEPT the case, pump, valve body, torque converter, input shaft and input drum. Everything except the valve body and pump will interchange, if that makes sense. Namely, keeping the case, pump and valve body (including electronics) from your original 1994 transmission, and swapping over ONLY the hard internal parts. If you were versed in rebuilding these things, you could use anything up to 1998 with a little fuckery. The only two years that will DIRECTLY interchange would be 1993/1994. No other year will interchange DIRECTLY (more on that later) due to the design of the valve body and PWM TCC valve.ġ999-up will not interchange with anything previous as the GenIII engines used a transmission with different length input shaft, among other things. 4L60Es had so many variations in trucks.ġ993/1994 transmissions are interchangeable.ġ995 is a one off year. This could get long, but basically you're SOL.
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