Engine/Transmission (1994 - 1998) Top with with GSK

[Gifford]

Right now my 4. 11 geared truck with 255-85's and a TST #6 with auto trans is 85 MPH, (I suspect the speedo is reading a bit low due to the 255-85's) My question is, will the GSK 3k allow me to exceed 100MPH?? (on the track of course) or do I have to get new gears or the 4k kit?

 

[Reb.B]

well if u have a 180 or 215 pump then stick with the 3k kit. if u have a 160 or 175 pump, then u need 4k springs. The 6 plate might hurt your top end. I u are going with springs then the 10 plate is the best plate to install. Dads 4. 10 gears goes 110mph with 3k kit. your egt's will probably be pegged though, good luck