Pulled the Allison apart last night for some upgrades and general inspection. Low mileage trans so everything inside looks like new. I discovered that it is configured for the PTO gear so I have that option if I want to add it in the future. I'll get the cases cleaned up really nice while I'm waiting for the brown truck to drop off parts then I get to put the complete drivetrain together and work on mounting it in the frame.
Inside the front half
A look at the back half
Empty case ready for cleaning
Pile of parts
I'll be installing new billet output shaft, 4x4 tail housing, new valve body harness connector (it was cracked, probably in shipment), deep sump pan, new oil cooler lines, new gaskets and seals, shift kit and new case bolts (some were missing when I got it).
Speaking of complete drivetrain, I scored a deal on a new-in-the-box NV273 ESOF transfercase. I'll use the NV271 that I was rebuilding for another project (or sell it). I've found all of the rest of the ESOF parts on Ebay and I'll just have to make up a custom harness...that is, after I pull it apart to install the 29 spline input shaft that mates with the Allison.