Thread: tire sizes
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Old 02-19-2024, 01:26 PM   #5
MikeB
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Join Date: Jul 2000
Location: North Texas
Posts: 3,435
Re: tire sizes

Quote:
Originally Posted by geezer#99 View Post
Easiest and cheapest way is to reduce speed to 64 mph. A 6mph drop equals about 240 rpm.
Problem solved! But then they'll call me "Slow Lane Charlie".

Back in the days of 55-65 mph speed limits, I put several thousand freeway miles on the truck. Heck, now a 70 mph speed limit essentially means 75-80 here in Texas, which the truck simply doesn't like.

Funny, because I remember driving freeways in cars with 27" tires and 3.7x gears back in the day, and we never even thought about needing another gear. Had a friend with 4.11 gears in a 60s Corvette who used to drive a 500 mile round trip twice a month to see his girlfriend. He said the same thing -- he doesn't remember the high revs being an issue.

Heck, I'll probably just end up with an OD trans, but then my 3.08 gears will be a little tall. Damned if I do...
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Mike
1969 C10 LWB -- owned for 34 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes.
1982 C10 SWB -- sold
1981 C10 Silverado LWB -- sold, but wish I still had it!
1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming.
Retired as a factory automation products salesman.
Worked part-time over the years for an engine builder and a classic car repair shop.
Member here for 23 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!
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