LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

Which shift kit is better...

Old Oct 22, 2007 | 12:44 PM
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Default Which shift kit is better...

Would you buy the Thrasher kit from 3800performance or the ZZP kit?

I'm also checking to see if this gear ratio conversion kit works with our cars. Here's the link.

https://www.zzperformance.com/grand_...=360&catid=105

Last edited by dj_stylzpgh/GXP05; Oct 22, 2007 at 12:59 PM.
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Old Oct 22, 2007 | 01:23 PM
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I was think of getting a kit and was wondering the same thing. Intense Racing has a couple of shift kits on there website too. From what I've read I think most peolple went with the zzp.
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Old Oct 22, 2007 | 01:32 PM
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You looking at going 3.29 or 3.69? I think those should work.
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Old Oct 22, 2007 | 02:44 PM
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i ran the zzp kit. nothing fancy, just messy
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Old Oct 22, 2007 | 07:56 PM
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I've also got the zzp kit.
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Old Oct 23, 2007 | 06:32 AM
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I used the thrasher shift kit on my old 1997 GTP like 7 years ago. The metal bushings gouged up the accumulator pins and led to causing a lot of crazy shifting problems. I've been running the ZZP kit for the last couple of years in my 04 Comp G with out any problems.
Tate
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Old Oct 23, 2007 | 08:21 AM
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zzp kit here too.
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Old Oct 23, 2007 | 03:43 PM
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ZZP kit here, no problems with HPT tranny adjustments as well!
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Old Oct 24, 2007 | 11:58 PM
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How hard is it to change the gears do you have to take it off the motor?
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Old Oct 25, 2007 | 12:00 AM
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Originally Posted by scarlett
How hard is it to change the gears do you have to take it off the motor?
pretty much a whole front clip drop followed by tearing apart the tranny.
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