On 20 Jul 2004 07:32:01 -0700, (Don) wrote:

I have an old 49 Farmall Cub that I am fixing for my father. I
replaced the bearings in the transmission. The old manual I found
online says the countershaft bearing retainer should be torqued to 35
ft lbs. The top clutch shaft retainer says to torque to 20 ft lbs.
Before I new this I torqued both to 20 ft lbs because of a bolt
size/torque diagram I found said this is the proper torque for a 5/16
bolt. Will I have problems? Why would there be different values?

I won't claim to know this specific application, but the 35 ft/lb
sounds high for a 5/16, when you consider that our torque specs for a
3/8"-16 were 35 -42 ft/lb, grade 8 bolt.

However,

We had some torque specs in certain applications that seemed much
higher than one would expect, and the auditors could be quite picky
about them. As far as I can remember, the only 5/16 bolts we had were
the oilpan on the engines, and they were somewhere in the 14 -18 ft/lb
range. (With a note to be retorqued after enine test, something that
I never remember seeing done. The pan gaskets compresssed and the
torques would go down below 10 ft/lb, but never seemed to come out on
their own.)

Lennie the Lurker