Sounds bad enough that I'd sure want to dissemble and find out what the whole situation is before buying a new yoke for it, chances are it'll take more than just a new yoke to fix it properly.

Then having been through the whole thing if it turns out that the yoke was the only trouble you will have peace of mind knowing the rest really is OK.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-