Lot's of good comments.
Jim, maybe the 1951 has a parallel frame but the 1946 and older angle closer together in the front than the rear. After several attempts I decided not to place the tank between the frame and the drive shaft because it was too tight.
Nobody mentions if the plastic would get brittle over time so I guess that is not an issue. The poly will rebound if impacted where the steel will dent.
I talked to Tanks Inc early this week and the steel model USPT-G is on severe back order and not discontinued so they pulled it off the web site. That one is a really good fit in the raised area of the last crossmember. If I go with the poly it will sit a couple of inches down but is a little bit thinner tank so it may not make much difference.
Thank you. Keep the comment soming if you have some.
1946 Chevy Half Ton ('56 235, '86 T5, '79 Camaro Z28 rear end, working on the '85 Jaguar XJ6 IFS)
1976 Margay Panther X, MC91B
