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Old 03-17-2008, 12:51 PM   #1
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Default Gear ratio conversion kit

Does anybody know what zzp'* gear ratio conversion kit actually does.
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Old 03-17-2008, 01:18 PM   #2
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It changes the double chain to a stronger single chain in addition to changing the drive/driven sprocket ratio inside the trans.
This sprocket ratio multiplied by your your diff'* final drive resluts in your trans' FDR.
If you have an SE, you have a 35/35 gear set and a 3.05 differential.
If you got a 37/33 gear set and kept your 3.05 differential, you would have a 3.42 FDR.

The gear ratios in ZZPs site are assuming you have a 3.29 ratio diff..

If your after a 3.29 FDR, all you would have to do is swap out the diff and sun gear.

ZZPs kit can only be installed during a teardown/overhaul but the diff can be swapped relatively easily.
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Old 03-17-2008, 06:55 PM   #3
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How much would this all cost me?
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Old 03-17-2008, 06:58 PM   #4
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Labor alone unless you're comfortable pulling the trans and cracking it open will run you $500 minimum. You'll need a PCM change as well.
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Old 03-24-2008, 09:12 PM   #5
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FYI, if you get a 3:29 gear ratio and a reluctor then you won't need a PCM change.
I went to 3:69 and think about it now and wished I would have gone with 3:29... FWIW.
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