I changed to a Dana 60 and now my truck drifts right. If I take it to a shop, will they be able to check and perhaps correct it if it's out of alignment? How much SHOULD that cost? Thanks.
As 4x4High said, did you do anything to the axle, or just drop it in? Could be dragging caliper, warped rotor, bad U-joint, spring pin out of whack, all kinds of things.
The alignment on straight axle trucks is stupidly simple. You adjust the toe-in with the tie rod, and straighten the steering wheel with the draglink.
Many shops want to charge you for the full alignment process that they'd do on a modern, IFS vehicle, which has many fiddly adjustments... I'd try and find a shop that gets that all you need do is set the toe and center the wheel.
If the toe is far off, my experience is that the truck bounces all over the road, 'cuz it wants to go left *and* right at the same time. What you're describing doesn't sound like that, so I'm inclined to either say your steering wheel isn't centered (fix it yourself, easy), or you have brake or suspension or some other non-steering issue.
-- A