:evil: let me know what you guys think, open to comments or questions. I have been driving it now for 1 month and it drives great except for that i added one spacer in the 2nd accumulator housing so i cant slam down on the gas when taking off otherwise it will feel like a mule kicking, i have noticed better fuel economy, better acceleration on flat streets and when going up hills it feels like it has more power now i haven't noticed much of a difference in the freeway yet concerning the sonnax servo as far as the p1870 code is completely gone and buried i have been driving it hard and mean on the freeway to see if i get any of the symptons back and is completely fixed so im happy about that, total time spent installing this with no tranny experience whatsoever 6hrs, will i ever do it again? YES i feel more confident now after i've done it, and will tear it down again in a couple of months when i change the fluid just to get that damm spacer out of there. put everything together and after i did i noticed that i had forgotten to install the drain plug kit that i bought :banghead: :screaming: but oh well i guess ill add it in a couple of months when i change the fluid. on my second try i removed both the washers and i got the travel needed without grinding down the tip of the pin. here are a couple of videos that explain the process: 1st video shows how to remove the parts and the second shows how to put everything back and how to measure the travel of the pin for different applications which i needed the most since i was adding the corvette second speed servo and the sonnax 4th servo in my first attempt at test fitting the servos i used the washer provided with the sonnax servo plus one of the golden rings from the transgo kit shown in page one, test fit the servos WITHOUT ANY O-RINGS FIRST as per the video and sonnax instructions because the o-rings will change the way the pin travels so the travel must be achieved first without them. side of the tranny that is held in place by two 10mm bolts, step two is to push down on the servo cover with the prybar to remove the snap ring that holds it in place. The kit itself was not difficult to install but it was one of those things that make you think, this was the first time i have ever been inside the tranny, so it took me twice as long to install everything here are the instructions for the kit itself:įirst you got to remove the heat shield on the pass. Lots of towels, nitrile gloves, safety goggles,a few cardboard boxes to catch all the fluid that WILL spill everywhere. Snap ring pliers (LONG NOSE) AND REGULAR PLIERS Six quarts of ATF, new filter(short or long) depending on the pan you got.ģ/8" speed wrench (most important tool) trust me it makes everything easy.ġ3mm, 10mm, 8mm sockets, ratchet and extension.įlat blade screwdriver (doenst matter what size) * B&M 80250 Universal Transmission Drain Plug Kit (FORGOT TO INSTALL) The Sonnax pinless forward accumulator piston kit 77987-01K eliminates these problems Fluid loss through the piston pin bore or cracks causes forward clutch to slip. Repeated reciprocation of the accumulator piston causes the piston pin bore to wear. This causes a fluid loss, resulting in a delayed engagement, slips, burned clutches and/or band. * SONNAX: 77987-01K PINLESS FORWARD CLUTCH ACCUMULATOR Piston : In 4L60E units it is common for the plastic forward accumulator piston to wear or crack. 250 are the factory size balls, if you have a badly worn out valve body you may need to get the bigger. 250" they are made out of plastic to prevent valve body wear caused by the factory steel balls (the. Can be used in stock applications for greater 4th gear (overdrive) holding power. *sonnax 4th gear super hold servo : The "Super Hold" 4th Gear Servo features 40% more apply surface area for greater holding power. * 4l60e 2nd gear corvette servo : Corvette servo pistons provides firmer shifts for competition, heavy duty and pro-street use. * transgo 46-PLT-96 heavy duty valve body plate * Sonnax 77998-03K 1-2 3-4 PINLESS ACCUMULATOR PISTON I found this video in the transgo website and it was very helpful i recommend you guys watch it before attempting this: and decided to install a couple of other items since i was gonna be in there. I first decided to install the transgo shift kit to fix the p1870 code, which is hard shift from 1- 2 and 2-3 after tranny reaches operating temp.
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