20X9 Vs 20X10 Offset Question

[johnb62]

Hello,

I have a 2020 Sierra SLT 4WD with a 2" leveling kit. It has the stock 20" snowflake wheels with 33x12.50 Open Country RT tires with no rubbing. I am looking at 20X9 wheels with 0 offset or 20X10 wheels with -18 offset. The tires are in great shape so I am not changing them yet. I want the tires to stick out from the fender wells just a bit. Maybe an inch or so. I cannot get my head wrapped around the offset with the different width wheels. I believe the factory 20s  are a +27. Any input or advice would be much appreciated. Thanks in advance!

[Bgill]

This link might help: https://help.summitracing.com/app/answers/detail/a_id/4643/~/is-backspacing-related-to-wheel-offset%3F

[JSB81]

I have a -16 offset 20 by 10 and a 12.5 wide tire would need some trimming. I have factory size tires with a leveling kit and I had to modify mudflap a bit. 

[johnb62]

Thanks. I ended up going with a 20X9 -1 and LT285/60 tires. I had to remove the bracket under the mud flap as described on other threads. Very pleased with the setup.