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are 19.5 rims on a 1996 Chevvy Dually a good idea?

Old 12-16-2015, 09:27 AM
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I'm in the process of putting 3 new tires on my 2wd 1996 Chevy 6.5 TD dually. I need to replace one of the rims because it is bent and wobbles side to side. I ran across this set of rims and found out that they are actually 19.5 rims and tires off a Chevy dually show truck. Ive read that some of the 19.5 tires are harder to balance than 16" tires. Ive also seen that the replacement cost for the 1.5 tires is twice the cost of my 16" tires ($1400 vs $700). If I dont get the 19.5 rims and tires I'm looking at putting 4 16" Eagle Alloy rims on the truck.
The 19.5 rims and tires asking price is $600 vs a used set of the Eagle Alloy dually rims for $300 plus the $300 im paying for the 3 other new tires.
(I put 3 new tires on the truck last year and they may have 1000 miles on them)
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Old 12-16-2015, 09:43 AM
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How do you use your truck?
I put 19.5s on my F350, and I am happy with them. I do like how the truck tows (heavy) with them.

But unloaded/not-towing, the truck rides rougher. And, since I do not drive the truck very often, I find that the tires I run have a tendency to flat spot.

19.5s are commercial tires and designed for very high mileage, reliability. But they are heavy, you will feel the ride difference. You may also notice a decrease in fuel mileage since you are swinging heavier rotating mass, and you braking power could diminish a bit too.
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Old 12-16-2015, 09:50 AM
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Most of the time I use the truck to tow the Scarab to the launch ramp 1 mile away. I may put 1000 miles on the truck a year. If I am not towing something I am getting wood or something from Home Depot

These are the 16" rims I'm looking at getting.
I also currently run LT235/85R16 load range E tires on the truck.
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Old 12-16-2015, 10:50 AM
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50/50, could go either way.
FWIW, I am running Roadmaster Tires, designed by and part of the Cooper Tires family.

Here are a couple pics I found on Google to give you an idea of aesthetics:

https://www.mecum.com/lot-detail/KC0...ickup/5-Speed/
(Can't link pics)

...and...

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Old 12-16-2015, 11:19 AM
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My truck sits low in the front, so I'm wondering if these 19.5 wheels would even fit. I have about 5 inches of clearance in the front above the tire with the LT235/85R16 on it now.
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Old 12-16-2015, 11:35 AM
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You will just have to source a tire that is the same diameter, about 32".

You can probably go a bit bigger and be fine, but that will require you adjust your speedometer settings. There are a couple options for that, easiest would be a handheld tuner from DiabloSport or HyperTech. (I assume they make one for the 6.5TD. If not, a dealer can reprogram overall tire diameter.)
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Old 12-16-2015, 12:33 PM
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i RUN 19.5 TIRES ON MY DUALLY f350 F load rating. Can get higher load ratins also like G. Smallest of these is between 32 and 31" in dia. Run the smalest size myself as they were bascly the same dia as the stock tires. One size smaller than the UPS trucks run really like them.
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