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**Cheng** · 12-18-2012, 02:22 PM

It is becoming time to put new tires on my K30 and I am considering a slight increase in tire diameter.

Currently my K30 sits on the stock 235/85R16E tires (31.7" Diameter) and is running stock suspension.

I use my truck for towing and hauling so an offroad style lift is not really an option for me; however at many of the jobsites I work at it can get slick and muddy.

I would like to put on 255/85R16E Mud Terrain Tires (33" Diameter) and am hoping some of you may have done the same thing.

I am thinking that by putting on 1" Zero Rate Add A Leafs like these:

http://www.offroaddesign.com/catalog/Zero%20Rates.htm

And also finding a set of the 5/4 ton CUCV Springs for added stiffness in the rear end that I can run these tires without rubbing problems.

Pictures or advice would be most appreciated.

12-18-2012, 02:22 PM	#1
Cheng Junior Member Join Date: Dec 2011 Location: Jacksonville, FL Posts: 74	Lift Required for 33" Tires on K30? It is becoming time to put new tires on my K30 and I am considering a slight increase in tire diameter. Currently my K30 sits on the stock 235/85R16E tires (31.7" Diameter) and is running stock suspension. I use my truck for towing and hauling so an offroad style lift is not really an option for me; however at many of the jobsites I work at it can get slick and muddy. I would like to put on 255/85R16E Mud Terrain Tires (33" Diameter) and am hoping some of you may have done the same thing. I am thinking that by putting on 1" Zero Rate Add A Leafs like these: http://www.offroaddesign.com/catalog/Zero%20Rates.htm And also finding a set of the 5/4 ton CUCV Springs for added stiffness in the rear end that I can run these tires without rubbing problems. Pictures or advice would be most appreciated. __________________ If it wasn't for the last minute, nothing would ever get done. 1953 3800 - SRW C&C Dump - 216/SM420 1985 K30 Scottsdale - SRW - 6.2/SM465/NP205 (Sold)