7 1/4 Vs 8 1/4
DesertRat, I did the 8 1/4 swap into my 68 Barracuda with no problems. You will have to take your driveshaft to a shop and have it shortened (the diff is a little longer on the 8 1/4), keep your original parking brake cables and swap them into the 8 1/4, you will also need the shock mounts and u-bolts for the 8 1/4 ( larger axle housing) I cant remember my off-set but I have less than an inch clearance between tires and springs. The only hard part was breaking the brake hose fitting loose from the body after 40 years without tearing it up to much, good luck.