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Depends on how tight you pack the diff and if you follow instructions precisely. I like to make it a bit tighter then stock with the shims and I put them together dry to be able to fit more in. It will be ultra tight for a few hundred miles but it will not have any impact on corners if you're auto Xing or road racing.
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FRPP Handling Pack, 95mm CAI, GT-500 throttlebody, FRPP CMCV delete plates, FRPP X pipe, JBA axle backs, Moto Blue UD Pulleys, PowerSurgePerformance 93 octane tune. Ford Racing Parts Dealer!! SpartaPerformance.com 13.05 @ 107.44mph.
I ended up ordering the Truetrac... Roush put them in their Trak Pak cars, so its good enough for me. The POSI is a little too aggressive, plus I don't want to be changing clutches every season or half season.
Roush is having some really good sales on these Truetrac and POSI units...that is until the inventory is gone!! $350 for either, that at least $100 off from anyone else online for the Truetrac and $150 off the POSI...
Get them now!!!
Anyway, I'll be installing mine in December... We'll see how this thing performs.
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Anyone Rebuild Their OEM LSD with Ford Racing M-4700-C Carbon Discs?
