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David David is offline
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Join Date: Apr 2002
Location: Houston (Clearlake), TX
Posts: 8,725
The 915 can handle the power for a little while but it's not a long term solution.

You can change the ring and pinion for about $2000 plus $1000 to install it. This would make your 4 speed similar to the first 4 gears of a G50/50 with 4th gear being a little taller than the G50/50 4th.

You can change the gears for $600 per gear but you could do it yourself since there's no ring and pinion alignment to deal with.
2014 Cayman S
2011 Cayenne Turbo
1979 930 (475 rwhp at 0.95 bar)
Old 01-02-2007, 05:33 PM
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