7 1/4 rear?

Cannot swap LBP, and SBP 7 1/4 axle shafts. The bearings are different size. The easiest way to get LBP with a 7 1/4 is to redrill the SBP axles and drums, or swap the complete axle assy. I don't think any one makes a LBP axle for the small 7 1/4. Personally, I wouldn't spend much money on a 7 1/4 axle assy . Parts are getting very hard to find. The easiest way to tell the LBP shaft from the SBP shaft is the bearing retainer. SBP retainer has 4 bolt holes, and the LPB retainer has 5 bolt holes