![]() These are the stock 3-4 and fwd return springs. Heres how TransGo instructs to set up the 1-2 accumulator (with one spacer).ĭana at Pro Built recommends this set up and I find it works great. I dropped mine with the exhaust connected and had to disassemble the servo to get it out, then reassemble it as it went back in. Try lowering your 2-3 shift point below 6000 and retest. This burns the 3-4 clutch and hazes the band. Finally it flairs or won’t even complete the 2-3 shift. You will need to lower the trans, how low it drops I think it depends on the exhaust setup and if you disconnect it or not. This softens the 2-3 shift feel and worsens progressively as shift point RPM goes up. IMO it's a good opportunity to get in there and uprade at least the 3-4 clutch and sunshell, maybe even the fwd sprag and add the $10 transgo hi-rev hardened pump rings and stiff priming spring.Īs for the servo it can be removed with the trans in the car. PLEASE NOTE: WILL NOT WORK ON Hybrid models. The transmission has to come out to install those. TRANSGO 4L60E 4L65E 4L70E 4L75E FULL MANUAL CONTROL STICK SHIFT REPROGRAMMING KIT 4L60E-3 1993-2007. What people leave out I'm assuming is the hi-rev 3-4 and forward return springs. You really don't want to use a spacer in the 428 housing. The 428 is not as deep as the 937 so naturally it will have a firmer shift. There are two used in f bodies, the earlier ones have a casting number ending in 428, around '00 or '01 they have a casting number ending in 937. These make the 1-2 shift too firm, most people say it's annoying but I'll add that it also gives an illusion that the other shifts are too soft.Įven with no spacers it should chirp 2nd at wot.Īnother thing is the accumulator housing itself. This softens the 2-3 shift feel and worsens progressively as shift point RPM goes up. The part people say to skip should be the spacer washers for the 1-2 accumulator. The installation of an OEM 4L80E fluted sun gear shaft bushing into the overrun clutch housing is highly recommended. Use the drill to enlarge the feed passage in the overrun clutch housing as well. Please register or login to enable Dark Mode. Be sure to drill at a 45 degree angle to maximize oil flow.Converts lock-up to an on/off system to help stop the TCC slippage code. Improves overall performance and shift quality. The Superior 4L60-E kit helps prevent premature wear of the forward sprag. Thank you guys for supplying awesome quality performance parts. This Shift Correction Package offers regular and heavy duty applications in one package. This includes the Smart-Tech Input drum one of my favorites and the Zip kits for a well-built bullet proof transmission. Hot Rod Power Tour/ Pump Gas Drags/ Drag Week You carry the most precise and updated parts to build the perfect 700R4 and the 4L60E, 4L65E, 4L70E.Gen 5 Camaro Tuning, Diagnostics, Dyno results. ![]()
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