07 Yukon Tire/Wheel Question

[FadedSS]

Hey guys, I have an 07 Yukon 4x4 slt with a CCM leveling kit (2.5” front 1” rear). I am looking to put some 20” x 8.5 KMC Rockstar wheels (Offset +10, Backspacing 5.14”) on it.

What is the biggest size tire I can stuff under there? 305 55 20?

Thanks in advance!

[Zed 71]

Largest I have seen are 285s with a 33" diameter - without trimming. When you say largest, do you mean diameter, width or both?

[FadedSS]

Largest I have seen are 285s with a 33" diameter - without trimming. When you say largest, do you mean diameter, width or both?

thanks for your reply. When I say biggest/largest I mean both width and diameter.

[Zed 71]

Look in the suspension section, someone fit 305/55/20s but I think they needed trimming.

[FadedSS]

decided to go with a 295 55 20, thanks for your inputs guys.