Something I learned today, Need advice.

Haven't done one on a 7 1/4 but have done it on a Dana 35 & I imagine it & most other rears are similar. If you're going to replace the bearings you'll probably need a press to get them off & the new ones on. I've seen people cut the old ones off with a torch or a chisel but a press would be better. I'd try to get the bearings ahead of time & pack them myself & put them in a baggie. Then you can take them to the shop & have the shop do the press work.

Don't know what the shop will charge you but where I live it cost me $20 per side to have the bearings pressed on a set of axles & that was 4 or 5 years ago. You can probably buy a cheap Harbor Freight or Speedway press for around $100. The presses usually come with a free set of press plates & about the only other thing you'd need is a bearing separator. I bought a press. I don't plan on having to pay to have it done again.