Yup....I put the bar through the 'dummy' bearings in the carrier and then place the bearing housings on the bar. I then tack weld them on and recheck and if they are still on the money, I place more but larger tacks and recheck and if good, it gets 'stitch' welded. 1/2" long stitches and let it cool and recheck. If good, solid welding commences and then check again. Any misalignment after that is usually pretty minor and for the ones that are off a bit, straightening with a little bit of heat usually brings it in.