Hi all
The reason for the differance in wheel size is Tube type and tubeless.
Originally the even size wheels were tube type whether they were solid rim or
split ring type. The half sizes are for tubeless tires. This size differential
starts with 16 and 16.5 inch wheels and goes up to the 24 and 24.5 inch wheels
used on modern trucks today. Under no circumstances is a half size tire to be
used on an even size rim, they will roll off the sides of the rim and can even
cause injury or death by exploding during inflation. There are also 14.5 and
15.5 inch tubeless tires that are used exclusively on mobile homes and U-Haul
equipment. I hope this sheads some light on the rim size issue. But again I
must stress the exctreme danger of mixing the half sizes on the even size
rims.
Perry Smith
'58 GMC Fleetside
Phoenix, Arizona
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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