- 4l60e corvette servo install install#
- 4l60e corvette servo install mod#
- 4l60e corvette servo install upgrade#
The new one is just about 1/8" longer at the point.Īssembly is pretty straight forward. There is not much difference in the pins. You can see that the new billet 4th servo is about a 1/4" inch larger in diameter than the stock one and in addition to a better designed seal the clearances are closer as well. To remove the cover, cutting the o-ring is the easiest way to remove the cover as I found out the first time. As before only a few tablespoons of fluid is lost. Here is their new website- OPT Oregon Performance Transmission I ordered the 4L60E BILLET 4TH SUPERIOR SUPER SERVO and the 4L60E LONG SERVO PIN I however treat my truck a little differently and like a quick firm shiftĪfter an email from Oregon Performance Transmission, I decided to give them a try. There are no worries of failure since she rarely travels further than the market on Saturday and bingo on Sunday, with no more load than Marge and her groceries. She wants to float down the road never feeling the transition during a shift change. "If these are good things, then why don't they came with them?" Cost? Perhaps more likely that the average soccer grandma that these were marketed to won't like a firm shift. The pistons require less fluid for activation, and have more surface area.Īll of them help to reduce slippage and should work to increase transmission life. The length of the pin reduces the freeplay and increases pressure on the band. No, I have been running the corvette servo and shift firmness. I am still waiting on questions to be answered by Oregon Performance Transmission before I commit to this addition. These two additions could have been added at the same time the corvette servo was added and probably at a discount. When I get to the point of a shift kit, I will do a complete rebuild including a beefy sun shell, and other improvements. While I may add a shift kit at some point, these are just performance parts that would be a good addition to that, or any transmission. A shift kit is a different thing alltogether. Keep in mind that these are simple, no transmission removal, additions. While using this servo you'll be able to pull most loads and even race in overdrive without burning up the band. This servo increases the holding power in overdrive by 40%, to almost completely eliminate the chance of burning up the band. Oregon Performance Transmissions wrote.While the Corvette servo replaces the two inner pistons, this replaces the outer piston and cover, so this can be used together with the Corvette servo for ultimate performance. I have not driven it enough to feel how much difference it made at this point.
4l60e corvette servo install install#
I have a 2" BL, and that made a difficult install easier, not sure if I'd attempt it without the extra room. Total time for the install, including clean-up ,was probably thirty minutes to an hour. I lost about three tablespoons of fluid during the process. The parts replaced were not as differing in size as the pictures in the above linked instructions, leading me to believe that the improvement may be less than would otherwise have been.
4l60e corvette servo install mod#
Most of that last paragraph will make sense when you do this mod Pay close attention and put the inner most spring back over the center nub after you "gut" the servo. The teflon seals both go on the 2nd apply piston (one large, one small), the red o-ring goes on the servo piston housing (inner). It does not take much pressure and as I explained before that darn pre-cat is in the way for any other method. I, carefully, used the base of the O2 sensor as a point to pry the cap in for removal of the c-clip.
4l60e corvette servo install upgrade#
I did print out and carefully read this set of instructions- Tranny Upgrade Part I (Corvette Servo) Best to pay close attention to how things come apart and re-assemble the same. There were no instructions with the parts, and the links above were not very clear, IMO. Pulling the cover did require cutting the o-ring, slipping it out, then the cover came right out easily. If not for that the install would have been pretty easy. Ok, so the parts arrived and I just finished installing them.įirst off the install was a real pain due to the fact that the darn pre-cat is right in the way!
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