Looking for something to upgrade my current 10 bolts. Would love to get ahold of a late model 3/4 truck and get the diffs and trans/t-case out of. Not happy with the 700r4 and the 10 bolts. They will be going into an 88 Gmc Jimmy running 37 inch MTR's and 7 inches of lift. Lift and tires are on but have only put 40 miles on it since I pulled it out of the garage in Sept. Oh the tranny went out of it on that trip to the trails. Thanks for any help you can provide.