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tire sizes
My 69 C10 currently has 255-70X15 tires front and back on 8" wheels. I've been looking at ways to reduce highway revs a little w/o going to an OD trans. Axle ratio is 3.08, so there's nowhere to go from there.
What do you guys think about 32x10.5x15 tires in the rear? Looks like they will reduce RPM by 240 RPM at 70mph. I'd probably put the same brand/model tires on the front in size 235-75x15.
How would the truck look? I can handle criticism fairly well. 
BTW, the engine is a mild 350 with TH350 trans. I am not worried about "getting off the line" in a hurry.
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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!
Last edited by MikeB; 02-19-2024 at 11:46 AM.
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