Ive put the d35 thats under mine under extreme torture and its stood up, you have to keep in mind that i would be upgrading from 3.07 to 4.10, which is going to save me money because the 3.07 carrier can not hold a 4.88 (which is what i want) but the 4.10 carrier can. the swap would take at least an hour, the GC is coil sprigs so is mine, Its basically the same axle but with disc brakes and 4.10 gears. as for the front im just gonna change out the gears.