Other than having to remove the bolts retaining the torque tube bell, pulling the bell back, disassebling the U-joint(not forgetting to bend back the lock tabs therin) and either tying the torque tube up or letting it drop, the job is very straight forward and any mechanic should be able to do it. I did it when I was eighteen without a manual and having never seen it done, and I was not a trained mechanic.