my 92 has 173000 on it the only mods i have done are straight pipe,BHAF, 2 full turns on power screw, and rotate fuel pin. any way of telling if this is the original clutch as i want to do a m2 fuel pin and my concerns are that it will toast this clutch. does not slip at all but when letting clutch out in 2nd and reverse the truck really hops like it is grabbing but not real smooth. any thoughts are welcome!!!!!