Making The Weak 7-1/4 Rear Axle Live... Kinda

You can try this, back in the day my brother broke his 7 1/4 so he welded the spider and axle gears to the case and got an extra left side axle, ground the splines down enough to rotate in the axle gear freely and when he wanted a locker, he would change the axle with the splines, after I broke mine I went to pick a part and found an 8 3/4 drum to drum for 55.00 1979 price.