Does your cross member install on the rockers or on the frame? Is this a street car or drag car? What brand bars are they?
You need to make sure you have the car at ride height when you mount the x-membre and your brackets to your housing so your pinion angle is correct with the front of your ladder bars in the middle hole, the bottom bar should be level with the car. Make sure every thing is square, I measure from the grease nipple on the bottom ball joint back to get the lenght equal on the X-membre, then measure from the front right ball joint to the left rear of the front ladder bar bracket, then front left to right rear. this measurement should be equal. This is tedious work that is time consuming double check everyting.
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