I got a parts truck for free and it has a 14 bolt rear end with 8 lugs. My 82 GMC has 10bolts front and back. Is this a good heavy duty rear being its a 14 bolt 8 lug?? If this was to be put on my 82, how would I make my front axel 8 lug also?? the parts truck is an 86 model. How could I find out if it has a 4 bolt main block?? My truck is still the same as last time most of you guys seen it. I'm still confused on what lift and tires to go with. here it is as of today, and someone stole my front 2 wheel rings. and here is my parts truck.