Join Date: Oct 2011
Location: Whitecourt/Edmonton Alberta, CAN
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I'm having this dilemma now where the selection of 37x13.50R18 tires are very little, and I should have bigger tire outside diameter to go with the lift height.
I do prefer more sidewall as well. Yes the Open Country MTs come in that size, but not all that much else. Mud Grapplers and Trail Grapplers do as well, but only 12.5" wide.
There are more options for 20" wheels and they retain a Load Range E rating at those sizes whereas 37" tires on 18" wheels are all Load Range D. (I just don't want to be buying wheels again unless I get a crazy good deal, and this would mainly be a visual appearance upgrade and I wouldn't gain much more vehicle capability other than improved axle ground clearance.) - Other than the lack of product selection I would definitely go for 37s on 18s and I am still looking. Let us know what you decide.
SRW XLT FX4 CCLB: 6.7L PSD, 6R140, 3.55:1 EL, 11500lb GVWR
2009 Tundra SR5 4x2 RCLB¹ 5.7L 4.30:1 (Sold)
Others: 1982 F-250HD 4x2 RCLB 6.9L-IDI // 1988 F-250HD 4x4 SCLB 7.3L-IDI // 1995 F-350HD DRW 4x2 CCLB 7.3L-T444E PSD // 2004 F-350SD SRW 4x4 CCLB 6.0L-VT365 PSD.
¹VIN details are accurate for the linked truck only, YMMV.
Last edited by TRENT310; 08-06-2013 at 05:14 PM.