I was wondering if I can put 20" rims on my 1998 K1500. I currently have LT265/75/R16 (6 lug) and would like to put on LT275/65/R20. The 20" rims (6 lug) are from a 2015 Tahoe. Just want to make sure they will fit with no modifications. Thanks
The wheels will fit. The tires will probably not without lifting or other modification. If you went with a 275/55R20 that size would be close to your current tire diameter. Your current tire is 31.5" and the 275/55R20 tire is 32". The tire you suggest is 34", that will likely rub, but others here can confirm.
you cant really fit larger than 33" tires without cutting or lifting from what ive read. 285/75r16 is the largest you can fit from what ive seen which is 32.8" tall. i just put on 295/35r24s which is 32.1" and those don't rub full lock but its close.