Do a search and see what you find, we have covered this before.

My opinion, leave it in the cab, its safer. The cab is the part that offers most protection, behind the rear axle is not a good place to have a gas tank if you are in an accident. With good hoses and tight connections you will never know the tank is in the cab.

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-