Thanks, Rat. I'm not looking forward to the transition and being away from my garage, but I couldn't turn down the opportunity.
My rebuilt transmission is indeed from Marlin. Delivered 2 days before the quoted 9 weeks and it looks beautiful.
I decided to replace it because the input shaft felt "crunchy" in comparison to to the R150F kicking around my garage from the 3.4 donor . I'm no professional and didn't get a second opinion, but I didn't like what I was feeling and decided it was the time to do it with the transmission dropped already. Maybe overkill, but I'm closing in on having the majority of all moving components replaced and decided to pull the trigger. The rebuild is beautiful and the input shaft is butter smooth. This 4Runner better last forever
I continued working on the front end tonight and finished rebuilding some manual hubs I picked up years ago on CL.
Hubs