4l60e questions
01-10-2008, 08:32 PM
#1
4l60e questions
i have a corvette servo and a billet 4th servo in m trans now, i have a transgo sep plate in my room and a transgo HD2 shift kit on the way. i have never been inside a an auto trans before and cant afford to mess my truck up since it is my daily driver. i've read about washers, drilling something out and turning line pressure back to stock but i dont know where or how to do any of this. can someone help me out so i dont get it torn apart and cant put it back together? thanks guys.
01-10-2008, 08:36 PM
#2
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the instructions that come with the shift kit are pretty well detailed... good pictures.. You can adjust line pressure at the pressure control solenoid with a torx bit...
01-10-2008, 08:40 PM
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The Transgo HD2 kit has very good instructions, I build trannys and they have very good step-by-steps even for someone that doesnt do that for living. Kit comes w everthing you need.All you need is a drill and hand tools and you might as well put a new filter and GM pan gasket in while your there.(The one that comes w the kit isnt the greatest).
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01-12-2008, 09:30 PM
#8
"Line pressure back to stock" means programming. The shift kit increases shift firmness with greater apply fluid VOLUME rather than pressure, and that's better. You already have larger servos so do not increase pressure with programming.
"Washers in the accummulator" refers to the 1-2 shift feel. I recommend using ZERO washers in there. They only affect the 1-2 shift (quicker) and you do not want this one to jolt, so leave the TransGo washers out.
"Pinless accumulator piston" Anything is better than the plastic OEM pistons in late-model 4L60-Es. An ealier model aluminum piston is also a perfectly good replacement.
When you go to drill the holes, use stage 1 for all three. If you find that your 1-2 and 3-4 shifts feel more firm than the 2-3 shift because of the billet apply pistons you can go back in and drill the 2-3 orifice to "stage 2". TransGo calls these different level of firmness by names like "firm", "performance", and "race" or something like that.
If you're not comfortable doing this then get yourself an ATSG manual and educate yourself on the parts before you begin. This is not something you want to f-up. Making mistakes on a trans gets expensive quickly.
"Washers in the accummulator" refers to the 1-2 shift feel. I recommend using ZERO washers in there. They only affect the 1-2 shift (quicker) and you do not want this one to jolt, so leave the TransGo washers out.
"Pinless accumulator piston" Anything is better than the plastic OEM pistons in late-model 4L60-Es. An ealier model aluminum piston is also a perfectly good replacement.
When you go to drill the holes, use stage 1 for all three. If you find that your 1-2 and 3-4 shifts feel more firm than the 2-3 shift because of the billet apply pistons you can go back in and drill the 2-3 orifice to "stage 2". TransGo calls these different level of firmness by names like "firm", "performance", and "race" or something like that.
If you're not comfortable doing this then get yourself an ATSG manual and educate yourself on the parts before you begin. This is not something you want to f-up. Making mistakes on a trans gets expensive quickly.
