Here is a link to a universal unit. I bought one similar to this one for my 1948 & what a difference it made.

http://www.ebay.com/itm/170677023911?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649



"IT IS WHAT IT IS"
1953 Chevrolet 1/2-ton 3100 4x4
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1948 GMC 1-Ton (now sold to someone in Hawaii!)
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1953 Chevy 1-Ton