well i went to larroccas today to drop off friends car and i asked him about gears and he told it was around 700 in labor to put them into my cobra. then he told me i was better off doing the solid axle if i go to the track often which i do once it opens again. but they wanted to charge 1100 for labor to do the swap so if anyone who has a 99+ GT that wants an IRS let me know. once i get 4.10's in with a solid axle, what should i be running at the track? i have a x pipe w/ cats, catback and cold air. also i will be on DR's, what will i run once i get the gears in? thanks -Jeff