Downsizing Wheels on 2020 Ram 1500 Big Horn

[aeromax4]

Thanks for your response. I'll look up the 20" tire size.

 

[Ssamt75]

I revise my statement. After looking at the clearance this weekend I've got 1/8" at best between the caliper and wheel.

The tape weights my shop uses to balance my wheels go off-center inside the rim otherwise they would probably rub on the caliper.

Do you happen to know if 285/65/18 will fit factory wheel without contacting upper control arm. Seems like they will.

 

[brian42]

Do you happen to know if 285/65/18 will fit factory wheel without contacting upper control arm. Seems like they will.

I wouldn't think so. The Rebel runs that size.

The wildcard is the wheel. The OEM 18x8 is the smallest wheel that fits so there's not much wiggle room outside of OEM specs for an 18" wheel.

My Big Horn had 275/65-18 tires and had some room to "breathe" on the stock 18" wheel. With the Rebel only have a +1 tire on the same 18" wheel (same specs, different visual design) there shouldn't be any rub unless you start modifying the suspension also.

 

[TestPilot57]

You have to be careful with aftermarket wheels

Key point.

Aftermarkets are not just "18 x 8", 18 x 9", 18 x 10" etc. The dimensions spec'd are for the ID of the TIRES. In addition to offsets, there is the profile of the metal that makes the wheel.

 

[drmoreau]

Thanks for your response. I'll look up the 20" tire size.

The wheel specs and tire sizes are on the inside of the driver door opening. Its an analog fix

 

[brian42]

OEM wheel specs:

2020 Ram 1500 - Wheel & Tire Sizes, PCD, Offset and Rims specs

Wheel size, PCD, offset, and other specifications such as bolt pattern, thread size (THD), center bore (CB), trim levels for 2020 Ram 1500. Wheel and tire fitment data. Original equipment and alternative options.

www.wheel-size.com

 

[aeromax4]

The wheel specs and tire sizes are on the inside of the driver door opening. Its an analog fix

I put a set of 275/55/20 with sensors. Great fit.