What Size Rear Blocks To Go With?

ZmanZ71 · October 5, 2011

I have a 2011 Crew Cab and i'm stuck between what size rear block and tire size to go with my 2" level. I drive 100 miles a day (although my company pays for the fuel) and a tow a 7x14" loaded down cargo trailer once a week. Since I tow I say I should go with the 3" rear block as opposed to the 2" but then I'd have the added expense of longer shocks or relocators, right? Also what size tire should I go with? I'm leaning towards 275/65/18's since they come in a 6 ply ratings although i'd rather have 285/65/18's but they only come in 10ply and that seems a bit much for a half ton truck. What set up do you all reccomend for me with the given info? Any help is appreciated as this seems to be overwhelming when searching the past few weeks. Thanks!

SouthCo · October 5, 2011

I can't help you with the tire choice, but if you go 3" rear block you do not need new shocs or relocators. I've got the RC 2" front and rear readylift 3" block with stock shocks.

[email protected] · October 5, 2011

I can't help you with the tire choice, but if you go 3" rear block you do not need new shocs or relocators. I've got the RC 2" front and rear readylift 3" block with stock shocks.

x2 - I have the same setup.

Personally, I'd go with 8-10 ply tires. I will be once these ones are worn

dave_benn · October 5, 2011

I would recommend replacing the shocks. I have the 3" rear blocks on my 2010 and almost everyday i feel them extend out all the way. It usually happens over train tracks or hard bumps, im waiting for mine to blow to replace them.

cobrajet84 · October 5, 2011

I went with 3" blocks on mine. I added shock extensions from ready lift just to make sure I didnt have to deal with the shocks bottoming out. It was worth the extra 60 bucks.

maxco · October 5, 2011

I have the 2" level with 3" ready lift rear blocks and have had no problems with it over extending. I've even had the axles at some pretty extreme angles where the tire was BARELY touching ground still and have had no problems. Mind you I don't do that often at all, but considering the fact you will be doing some towing and how much these trucks tend to sag the rear end with a load I would recommend the 3"

sab316 · October 5, 2011

Go with 10 ply tires. I'm running E rated right now and its not bad at all. I actually think it rides pretty good. Can't tell a difference between D or E anyways. Just get D or E especially if you tow... Plus they will last longer.