52A
I used my stock filler tube out of the cab and turned it so it will fit as the filler in front of the pass rear fender. The 1 1/2'' then flares to 2'' and connects to the tank under the passenger side between the rails, in front of the rear axle and tucked up into the frame. Yes I cut the diagonal reinforcing sheet piece. It's 10''x11''x34''. holds 16 gallons.

universal gas tank @ ::
http://www.chassisengineeringinc.com/page86.html

http://discountgastanks.com/?session=ad03defaf3f02a84dfe450ed7a354dce


Gooday
Jim

small wheel moves by fire and rod,
big wheel fires by the grace of god,
everytime that wheel turns round,
bound to cover just a little more ground.