Bill, do you have an SM420 in your truck? They were not available until late 47... your truck should have an unsynchronized 4 speed I thought?

I have heard that Novak is the place to go for rebuild kits, but have no personal experience with them.
http://www.novak-adapt.com/catalog/sm420_package.htm

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-