Here's a couple pictures of the 21.5 gallon tank (available in the big trucks only) with measurements next to the 17.5 gallon tank.

Note, the filler neck on the 21.5 is different than the 17.5 neck and as would be expected the hold down straps are longer.

Both tanks are 52" long. The 21.5 is 14" tall, the 17.5 is 11" tall.

Mike B smile
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IMG_20190812_191749968.jpg (1.15 MB, 93 downloads)

Last edited by Mike B; 08/13/2019 3:05 AM. Reason: added measurements

Mike Boteler

1956 Chevy 3100 Resto Rod
1952 Willys M38 Army Jeep
1983 Jeep CJ7 Laredo
1984 Jeep CJ7
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Silver Spring, MD