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Originally Posted by ModMotorRacer
I know people launching at 7k on slicks with stock 31-spline trac-loc. I know people that have blown out there 28spline trac loc on street tires. I have seen an Eaton grenade on its 3rd pass behind a 270rwhp 5-speed. Its all a crap shoot...the only truly built rear...is a spool. If you don't race much then you'll be ok for awhile....honestly though it could be 5th pass or 500th pass. rears are funny that way.
Adam
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Ill second the luck of the draw on the rear as ModMotorRacer says, Actually the rear is the strongest part in the mustang, I worry about my t-45 first, then my motor, then the rear Last. The only reason i really upgraded to the 31 spline axles and Locker, was because it was a deal, I wish i came across it before i put my 3.90s in.
And actually i wish i didnt listen to 4.10s no power adder and 3.73-3.90 with power adder. I shouldve had 4.10s from the door.
I had a mini spool in a Vega V8 I had, I couldnt find a good Posi rear, and too expensive to get a rear built so i bought a mini spool for $175 back in 1986. That car could come off the line. but nothing like turning a corner and having that spool "HOP"!!! since the outer wheel turns the same as the inner!!! Track only use, not safe on the street, but i drove it on the street. Scary on on ramps!!!
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1997GT SOHC, PI Heads,intake, SCT 4 bank, UPR CAI
Zex Nitrous system 125 hp shot,Steeda Tri-AX
March Underdrive pullies,2 1/2 O/R Pipe, Magnaflow Catbacks,Mac Upper and lower Control arms,5 speed
4.10 Gears,31 spline, Nitto 555 drag radials Spinning
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