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Thank you all. I talked to the local Porsche service technicians who said with my engine configuration they could not recommend using the stock 2.7- 5 Spd flywheel. He also could not make a recommendation on the 3.2 - 6 Spd unit. Bottom line I bought one installed it as well. Approaching 1000 miles 320 on track. I feels so much better than the stock flywheel when coming hard into acceleration. The feeling that something was shifting around at the point the torque band was reaching it peak was gone. I guess I was blaming motor mounts when it was just the springs in the flywheel giving up and collapsing.
I am not recommending anyone else does this unless you can afford a transmission. I also want to say I've researched the earlier half shafts and would not do this on a pre 2003 5 spd. 2003 and later the axle tubes are larger in diameter. The 2003 and later inner CV bearing have a 10.1MM through hole. This also allowed me to increase the bolt diameter from 8MM, by re-drilling and tapping larger threads in the transmission flanges.
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2003 Black 986. modified for Advanced level HPDE and open track days.
* 3.6L LN block, 06 heads, Carrillo H rods, IDP with 987 intake, Oil mods, LN IMS. * Spec II Clutch, 3.2L S Spec P-P FW. * D2 shocks, GT3 arms & and links, Spacers front and rear * Weight reduced, No carpet, AC deleted, Remote PS pump, PS pump deleted. Recaro Pole position seats, Brey crouse ext. 5 point harness, NHP sport exhaust
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