The Ford Barn

SofaKing · 04-24-2015, 03:04 PM

I am replacing one of the differential carrier bearings/ races in my 36 banjo. The instructions in my Ford manual for 39-40 states that an .008-.010 shim is placed on the right axle housing and it is bolted to the center section, install the diff assembly, same shim on left housing, bolt it together. Here's the quirky part; it then states that you "turn both axles by hand in the same direction and there should be perceptible drag while the pinion turns." If it is too tight it states that ONLY the right side should be shimmed.

Everything I have read here and on the HAMB indicates both axle housings are shimmed equally.

It had .005 on both sides when I disassembled it so I started there. Too tight, changed right side to .007, too tight, changed left side so both now at .007 and I can turn both axles in same direction and the pinion turns with significant drag.

My 60 year old "Motor" manual states there is no difference between the 36 axle and the 39 except the introduction of hypoid gears in 39 but it doesn't give instructions for setting the adjustment. I did not change anything on the pinion setting, the ring and pinion were beautiful when I took them apart.

Anyone have experience with this and care to weigh in?

04-24-2015, 03:04 PM	#1
SofaKing Senior Member Join Date: Jun 2014 Location: Salt Lake City, Utah Posts: 756	36 Banjo Differential Carrier Bearing Adjustment I am replacing one of the differential carrier bearings/ races in my 36 banjo. The instructions in my Ford manual for 39-40 states that an .008-.010 shim is placed on the right axle housing and it is bolted to the center section, install the diff assembly, same shim on left housing, bolt it together. Here's the quirky part; it then states that you "turn both axles by hand in the same direction and there should be perceptible drag while the pinion turns." If it is too tight it states that ONLY the right side should be shimmed. Everything I have read here and on the HAMB indicates both axle housings are shimmed equally. It had .005 on both sides when I disassembled it so I started there. Too tight, changed right side to .007, too tight, changed left side so both now at .007 and I can turn both axles in same direction and the pinion turns with significant drag. My 60 year old "Motor" manual states there is no difference between the 36 axle and the 39 except the introduction of hypoid gears in 39 but it doesn't give instructions for setting the adjustment. I did not change anything on the pinion setting, the ring and pinion were beautiful when I took them apart. Anyone have experience with this and care to weigh in?