Originally Posted by Markiemark9
Unless I've missed, I don't see anything here : '48-'51 Manual
No, you didn't miss it, and the parking brake cross shaft is not mentioned in the Lubrication section of the manual either.

However I just got a 1947-54 GMC 100-400 service manual and it is much better and more detailed than the Chevy manual, wish I had one years ago. I can't find an online copy but reprints are available.
That manual clearly states to lube the cross shaft with engine oil every 1,000 miles.

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-