Is it possible for a Ford 9" rear to have Chevy axles? I just pulled my wheel to check my rear brakes and found that. Someone took a 4 1/2 lug hole(bolt pattern) brake drum and drilled extra holes to match the axle lug(bolt pattern) which are 4 3/4. Did Ford make a 4 3/4 lug (bolt pattern)axle for the 9' rear? I know for sure it's a 9" Ford rear with 3.70 gears. I have just never seen a Chevy lug pattern on a Ford axle. Or do you think someone took a Chevy axle and had them resplined to fit a Ford rear? Thanks for your help!