Don't know if the Red Head Steering Gear box has a bearing instead of a bushing to support the sector shaft - Call Harvey (the owner) at Red Head and ask him about it.
Red-Head Steering Gears, Seattle WA - Red-Head Steering Gears Home
I just put my new Red Head box in this last weekend. I've been chasing a wandering front end for a year... all new tie rod ends, new uppers / lowers, new hub assemblies and u-joints. I even added the BD SBS to stabilize the steering box and it didn't do the trick on an old sacked-out box.
The new Red Head with the SBS is a sweet combo for sure - I'm really happy with the truck's steering now.
OBTW, wrt the poster having problems with the hydraulic lines: remove the suction (larger) line from the steering gear AND remove the high pressure line up near the firewall (watch the relationship of the hard line to the box so you don't have to pull it two more times to get it right - don't ask me how I know... ), install the HP line on the box body and fish it back up top. Pin the box with one of the bolts and re-connect. This way you don't have to remove the wheel liner.
Kudos to Harvey at RHSG - very helpful and very encouraging - the world needs more Harvey's IMHO. Thanks for your advice Harvey!
I also used the Snap-On CJ119B puller - It was like taking a gun to a knife fight. I put some pressure on it, hit the side of the pitman arm with a 5 lb shop hammer, gave it some more torque - went to get another beer and when I got back under the truck - it was off - suh-weet!