Rough 1-2 shift with shift kit
07-02-2008, 09:19 PM
#11
Launching!
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Yea, I was surprised too that it stripped. Justin from Blackbear Performance tuned the truck for me.
07-02-2008, 09:22 PM
#12
Launching!
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Have them return the 1-2 accumulator assembly back to completely stock its easy just drop the pan and make sure your line pressure with the harness unplugged from the trans does not exceed 230 psi do this and you should end up with a much more tolerable part throttle shift feel . They should check the line before pulling the pan as they may need to turn down the PCS some.
07-03-2008, 07:21 PM
#14
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no turning it down wont hurt anything....there are two ways of getting better shifts...1. turn up line pressures on stock tranny....2. put shift kit in(they are hard parts designed to run on stock tranny pressures)....the biggest problem you have is a 6.0l and a blower...doesnt matter how many times you put a shift kit in a stock tranny that combination will blow up eventually....best bet is to buy a built tranny, built for your power output in mind...
07-03-2008, 08:08 PM
#15
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no turning it down wont hurt anything....there are two ways of getting better shifts...1. turn up line pressures on stock tranny....2. put shift kit in(they are hard parts designed to run on stock tranny pressures)....the biggest problem you have is a 6.0l and a blower...doesnt matter how many times you put a shift kit in a stock tranny that combination will blow up eventually....best bet is to buy a built tranny, built for your power output in mind...
4L80E with HD-2 Shiftkit comes to mind.. I love mine.
07-06-2008, 09:16 PM
#16
Launching!
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no turning it down wont hurt anything....there are two ways of getting better shifts...1. turn up line pressures on stock tranny....2. put shift kit in(they are hard parts designed to run on stock tranny pressures)....the biggest problem you have is a 6.0l and a blower...doesnt matter how many times you put a shift kit in a stock tranny that combination will blow up eventually....best bet is to buy a built tranny, built for your power output in mind...
07-07-2008, 12:20 AM
#17
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I did not see anything on what TC you had, but I had the similiar issues. After I rebuilt my 4L60 to a level 5.
My tires would want to turn like a stupid half a turn going from 1-2 shift. And this was driving slow & normal like 15-20 mph.
They checked the plate hole size.. tried the different springs, stock/corvette servos, retune and nothing. Just a truck that kicked like a mule- when I did not want it to.
What fixed ALLL of my headaches was going to a 10" TC with a 2800 stall. Best money I ever spent.
My tires would want to turn like a stupid half a turn going from 1-2 shift. And this was driving slow & normal like 15-20 mph.
They checked the plate hole size.. tried the different springs, stock/corvette servos, retune and nothing. Just a truck that kicked like a mule- when I did not want it to.
What fixed ALLL of my headaches was going to a 10" TC with a 2800 stall. Best money I ever spent.
Last edited by rclnc; 08-26-2008 at 12:33 AM.
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