A/C B missing drawbar bolts

Farmall plowboy · Jul 17, 2011

My son has a B, but two of the drawbar bolts are missing. Does anyone know the size and thread for his drawbar?

Dick L · Jul 17, 2011

Some were 1/2" and newer B's had 5/8" bolts. Measure it with a ruler to make sure.

Farmall plowboy · Jul 17, 2011

Thanks, I did measure one set of holes, came real close to 9/16" could that be correct? And it appeared to be a fine thread?

Dick L · Jul 17, 2011

One never knows what you will find after that many years. It would have had course threads from the factory. Less work to go from a stripped 1/2" course to 9/16" than to 5/8". Not much to drill out. Hole in the drawbar might not even needed drilled if it was washed out some.
You will just have to try a 9/16" fine thread bolt to see.

steve(ill) · Jul 17, 2011

i have drilled out 1/2 inch stripped holes that were wallowed out (about 9/16) and retap them to 5/8 course thread. If the holes were 5/8 and stipped, i have drill out to 7/8, rethreaded and installed inserts locktited into the holes to get back to 5/8 course thread.

Farmall plowboy · Jul 18, 2011

Thanks for the info!

A/C B missing drawbar bolts

Farmall plowboy

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Dick L

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Farmall plowboy

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Dick L

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steve(ill)

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Farmall plowboy

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