I bought some Yukon 3.08 ratio gears and spider gears the other night and they shold be here today.. I'm hoping to have the seats in this weekend... at least the front. I got a chance to get a promotion at my job but it involves me making my commute go from a 1/4 mile to 14 miles one way. So putting the seats in and getting insulation/sound deadener and carpet in a lot higher priority then before! That exhaust heats the cabin up quick and when you don't have A/C it's no fun! Gears should help with the gas mileage and some noise I've been getting from the rearend... I had used the gears that came with the rearend and I don't know the history of the car,so there is a good chance they are worn out.