I'm trying to re-do and upgrade the brakes on my '50 1300. It's had lot's of PO's and lot's of different upgrades. I'm trying to put new brake shoes all around. The front wheels are still original so no problem there. The rear axle is the question. The driveline is open - been changed at some previous era. It's a 10 bolt - the bolts face forward. Cast into the "pumkin" are GM37258-99. The ratio of this axle also has me baffled - I rotate the drive shaft once and the wheel turns about .6 of a revolution. Turn the drive shaft 5 complete revs and the wheel turns 3 times - I calculate that to be a 1.67:1. Can that be right?? can anyone tell me what type / year this rear axle might be so that I can order brake shoes?
One more thing - that might help identify - I'm pretty sure it's too narrow as the rear tires occasionally grind on the box when I hit a bump.