![]() ![]() 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. 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. 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. Reprogramming Kit Manual Shift Control Fits 350 1969-81 Does not fit lockup transmissions Share. The transmission has to come out to install those. 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. When youre sure you understand them - read them again - see / be the valve body.lol. In this video we install a TransGo 4L60E-HD2-D Shift Kit in our 4L60E rebuild This kit corrects, reduces and prevents many issues that plague the 4L60E. 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. First - read the instructions that came with the kit. 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. The part people say to skip should be the spacer washers for the 1-2 accumulator.
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