ditching the 85s on a dually

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ditching the 85s on a dually

Postby manostihl » Wed May 27, 2015 1:59 pm

has anyone ever switched their dually to 75 series tires?
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Re: ditching the 85s on a dually

Postby ellis93 » Wed May 27, 2015 2:40 pm

265/75's will rubb if not aired to 70 or 80psi on a dually...loaded. 245/75 are short but will fit well....better than a 235/75 will
93 D250 ,5 speed,4.11s,k&n autometer tach pyro trans boost guages,GDS 60mm h1c 14cm,honed 5x10,hplp/reg,1/8 timing,M+H M2 fuel pin, tims cooler tubz
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Re: ditching the 85s on a dually

Postby manostihl » Wed May 27, 2015 5:33 pm

ellis93 wrote:265/75's will rubb if not aired to 70 or 80psi on a dually...loaded. 245/75 are short but will fit well....better than a 235/75 will

What about wheel spacers and longer studs? I wanna stay away from shorter tires I already top out too quick with my 4:10 gear
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Re: ditching the 85s on a dually

Postby ellis93 » Wed May 27, 2015 6:21 pm

1" spacer between the wheels will make the 265's clear nice. A 265/75/16 is the same height as a 235/85 so you'll stay the same on the final drive ratio.
93 D250 ,5 speed,4.11s,k&n autometer tach pyro trans boost guages,GDS 60mm h1c 14cm,honed 5x10,hplp/reg,1/8 timing,M+H M2 fuel pin, tims cooler tubz
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Re: ditching the 85s on a dually

Postby manostihl » Thu May 28, 2015 6:45 am

ellis93 wrote:1" spacer between the wheels will make the 265's clear nice. A 265/75/16 is the same height as a 235/85 so you'll stay the same on the final drive ratio.

how would this effect the lining up of my rims and my ability to haul? just curious i dont really haul too much big stuff but id like to be able to if need be.and also what about some 285s for a little more top end?
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Re: ditching the 85s on a dually

Postby RumbleFish » Thu May 28, 2015 7:28 am

285 will be is too much for a 6" rim imo. I have 7" and dont even like that.
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Re: ditching the 85s on a dually

Postby ellis93 » Thu May 28, 2015 9:55 am

What rumble said^^^^^. They'll rub even with the spacer loaded. Seen that,and it looks stupid as well (that's all opinion lol).

I doubt you'll notice anything with the spacers other than the tires placement in the fender. Maybe if someone tries to align the truck then they might see something/have issues.....but I doubt that as well.
93 D250 ,5 speed,4.11s,k&n autometer tach pyro trans boost guages,GDS 60mm h1c 14cm,honed 5x10,hplp/reg,1/8 timing,M+H M2 fuel pin, tims cooler tubz
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Re: ditching the 85s on a dually

Postby matthewh » Thu May 28, 2015 12:19 pm

When i get around to new tires for my dually, I was planning on 265/75/16 up front and 235/85 out back. I've got 4.10's as well, and trying to find an alternative to swapping gears to gain alittle road speed
'93 W350 5spd Getrag, 4.10 gears, 83k miles and counting, Mods: LPPP AKA Ma Dually
'54 Dodge M37 6.2/700R4/205, 5.89 gears, WC rear axle
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Re: ditching the 85s on a dually

Postby manostihl » Sat Aug 29, 2015 2:17 pm

The only reason I ask about wheel spacers to put 75 series tires on is because they are more readily available and I want taller tires for more e way speed with my 4.10s
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Re: ditching the 85s on a dually

Postby PToombs » Sat Aug 29, 2015 5:30 pm

An 85 series tire is taller than a 75. Here is a tire calculator, you can put in your stock tires and what you want to run and it will show you the height, speed change, and other differences between different tire sizes.
http://www.1010tires.com/Tools/Tire-Size-Calculator
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