Not Ranked
Arntz never made it to 91" until the very late Type 4 cars. The most common Arntz, the Type 3, still had a 90" wheelbase although many have been modified, as you guys are discussing. Ron Butler made 60 of the Type 3 chassis for Arntz before he went under and subsequently, the first 30 or so Butler chassis remained unchanged until Ron decided to lengthen the wheelbase by 3/4" in the mid 80's.
Jason
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