20x9 -12 with 33’s and 4inch kit

[TotallyNotJohn]

Hello my truck is in the shop at the moment so I want to ask. I am getting a 4 inch lift kit on my 95 c1500 RWD single cab. I plan to get some 20x9 -12 offset with 33 inch tires. I want to know what spacers I would have to run so the tires don’t rub. And off possible to get them sticking out thr same distance. I saw one video and the guy put 2inch spacers but he said his was 4x4 and I don’t know if that makes a difference but in his video the front stuck out by about 1/4 of an inch. So I’m thinking add an additional 1/4 to whatever size would work. 411 gearing if that helps, re-end has been swapped and upgraded

 

[Sean Buick 76]

A 1.5” spacer on each side should make it even front to back however the spacers up front will make the running worse than without.