I found a ford 8.8 inch axle from an explorer with disc brakes for 750 dollars. is this a good deal? they will give me 300 dollars if i trade in my dana 35 rear axle non c-clip style. it has 4.11 gears and new posi unit. Is this a good deal and will the ford 8.8 hold up to a chevy 350 with 4.11 gears. do the ARB air lockers fit and work well in the 8.8. I've heard this will fit easy in the wrangler without shortening it and the lugs will match. ?????