The 1939 to 1948 Ford and Mercury Shop Manual page 261 states backlash should be checked on the splines of the pinion shaft. Never greater than 0.008” and more than 0.003”. At 0.005” you are golden right smack center. Hope this helps. I have been looking for these numbers.
Don’t wait to get this specialty work done by these wonderfully skilled vendors. Each year there are fewer! I recently had a Columbia bullet proofed by John Connelly. Had everything and knew how to do it also. I wonderful person to do the hobby.
Looking to build Columbia rear not using original drivers side axle half. Almost anywhere east coast within range. Complete 1939 ford rear end also acceptable.
For those who have installed several banjo rear axles, is it easier to remove the entire rear and torque tube as a unit. Then disassemble rather then working under the car. Is it a lot more work but worth it, or a matter of preference.
1. 69 years old
2. 1939 - 3rd one
3. 20 years- 1st-during high school 1 yr, 2nd- after college 12 yrs
4. Coupe - 1st fordor, 2nd sedan, finally after only 50 yr the coupe
5. Deluxe
Great information that I am currently and continue to read until all have been read, hoping to be understood. Thank you all as always . Had the car for 22 years time for an upgrade!
Having read the Columbia install instructions, every post I could find here on Fordbarn and completing the rebuild of my 1939 Columbia half rear axle begins the prep stage for me. I cannot determine the best or quickest or easiest way to adjust the pinion backlash.
Columbia install notes the...
First impression from personal experience, yes but it will not be easy work. Model T experience would be very helpful(crank to start). A 40 should have the crankshaft adapter for a crank/lug nut crank, much easier!