Move the secondary jack to the rear of the engine and support it. Now, slide the transmission out from underneath the vehicle. There are more than 30 parts which need to be disassembled, cleaned, repaired or replaced. Now, pull the driveshaft out of the transmission and set aside. There is probably still fluid in the transfer case so don't tip it up or turn it with the vent tube down until it's over a drain pan. You should feel three distinctive clicks each time the converter drops into place. This is normal and one way to tell it is installed properly.
Be sure to disconnect the positive cable from the battery first. Perhaps you might consider doing it the first time with an experienced mechanic. I had a Turbo-350 and a Turbo-400 transmission rebuilt back when I still had my 1968 Chevy Camaro. Early versions had them side by side, but later versions had one moved further back in the housing. I think the extra quart is probably from dropping the valve body and losing a little more fluid. Do not allow starter to hang by the starter wiring.
Remove the remaining top 1. You will lock up the transmission if you put a long bolt in a short bolt position. Note: You should be placing nuts and bolts in their labeled containers as you remove them. Be careful to avoid damage to the pump gasket and case machined surfaces. Then the hold down plate can be put on and torqued to 96 inch lbs. The crew at Just Chevy Trucks referred us to.
Remove the wire harness and main electrical connector socket. Note: The 732 pump manfactured since October 1986 which includes some early 4L60Es without the 2 piece bellhousing has a cast in step to help retain the bushing. Vehicles today are running hotter than ever and less and less air flow in and around eng. Continue wiggling the torque converter and rotating it back and forth while pushing in until it is fully engaged. Flip the transmission shifter into neutral - 2 clicks back from all the way forward which is park. Use a good quality, undamaged Torx driver bit.
I also speak my opinion based on personal experience. If you facing a transmission replacement, you can reduce the cost considerably by removing and re-installing the transmission yourself. Once you have set all the clearance levels, its time to move onto the input drum. What kinds of repairs does a transmission need? Torque Converter Installation Note: You must be certain the torque converter is fully seated into the transmission before installation. These parts should now be sitting on the bench: Remove the reaction sun shell. As you can see, the whole process is not really that complicated; it just requires focus and attention to detail.
This will house one of the plastic pistons that should be replaced. Be careful to ensure the trans is straight and the guide pins are seating, the bell housing is just aluminum and any binding could risk damaging the transmission case. They contain specs, photos, and a few upgrades for a basic non-high performance rebuild. Not pictured is the 4L70E servo - which looks similar to the Corvette servo but with a slightly smaller diameter. Then install the remaining bolts.
Alternatively, you could go on Craigslist and pick up a used one, hoping that it works as great as the seller tells you it does. Remove the three bolts from the stamped steel plate near the left rear corner of the valve body, remove the three accumulator body bolts, then remove the separator plate. Of course, before anyone starts with the procedure they should know the basic steps. Remove the 2 15mm bolts holding the starter to the engine I also removed the starter and selenoid wires 10mm and 12mm I think, but you may be able to just tuck the starter up into the frame to get it out of the way and leave the electrical stuff hooked up. These pictures are for anyone that might need them. I think anyone with more than 50k should benefit from this write up because if nothing else, you have to change your fluid and filter.
The second step in rebuilding the 4L60E transmission is the pump assembly. Remove the pump housing bolts and carefully pry the pump out of the front of the case. To flush the lines, first blow compressed air through the lines. Pic 8 When you pull off the separator plate and gaskets the case checkball will come down on top. Turn the flywheel and remove the other 2 bolts. Use a gallon milk jug to catch the fluid and debris as it is blown out of the lines.