The New BIG BORE XD JK steering gear is the most powerful and strongest replacement Jeep JK steering gear on the market. Anyone with a Jeep JK running large tires and/or has a locking front differential will want this bolt on upgrade on there must have list. The BIG BORE XD produces up to 35% more turning force than the OE steering gear. By replacing the stock 70mm piston assembly to a larger 80mm piston, output torque is increased significantly. This is the same piston assembly found in all new Ram 2500/3500 diesel trucks. The increased turning torque will turn up 37" tall tires without the need of cylinder assist. Changed also is the sector shaft diameter. This has been increased from 35mm to 45mm to handle the extra torque output. Included in the kit is a new pitman arm that mates to the larger sector shaft. Note the pitman arm is a OE replacement and has no extra drop to it. Heavy Duty Case. All mounting areas of the BIG BORE XD are beefed up significantly. The BIG BORE XD weighs in 15 pounds heavier than the OE steering gear. Improved on road ability is achieved by changing to a slower 16:1 turning ratio.
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