my 1956 dodge postal van

going_postal said

i bought an original 1956 U.S Post Office parts list book . in there it says that the rear gear ratio is 4:78 to 1 . i think i'm going to swap the rear with something thats not so low .

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Yep. Postal vehicles had low gears, like the Scout I had. Which rear end is in the vehicle?

Like I said before, the Durango radiator should be right for the 318. It is only 18 inches wide.

Good luck on the RV. Is the RV a dualie?

B.