I've been a while for a very long time. In the meantime, I've swapped a 454, front Dana 60 and rear 14 bolt to my Blazer. My 454 is tired (bone stock with many miles). I currently have 4.10 gears with 38.5 Super Swampers SXs. My question is, any recomendations on where to buy the gears. So far, 4wpw has good price on both sets, but not sure if their quality is good or if I can find a better price somewhere else. Another question. Since I need to go with thick gears, Do the installation kits need to be a different part number in order to get longer ring bolts? Or is there a specific part number for just the longer bolts? Any help greatly appreciated.