what about posi rears? If I am going to replace the factory rear end, should I definately go with a posi, or doesn't it matter that much? How about a 3.73 with a 5 speed to get the RPM's down at highway speed? I am not too worried about mileage, but this would help the RPM issue and the mileage, as well as still give me the low end torque that the 3.73 gears would offer. I want a torquey rear end, not so conerned with the high end speed, but don't want to put extra stress (uneeded high RPM's) on the motor. I appreciated all of the comments and advice...very helpful! Also, what are you guys doing about cross members and other parts attached to the main frame by way of rivets? Just leave the old rivets, or replace with bolts?
