Be careful when tightening the steering gear bolts on an XJ to torque them to factory spec, I think it's 75 ft/lbs. Overtightening the bolts will crush the frame rail. Once the inner frame rail sheet metal bolt sleeves have started to crush, the steering gear bolts will continuously loosen. The front frame rail would then have to be replaced, but I think there are now some aftermarket frame rail repair parts that beef that area up and repair a crushed rail.