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1986 Chevy 1 Ton Army Truck Problems - Alternate Adventure Part 2

Part 2: Driving Halfway Across The Country To Swap A Transmission
By Fred Williams
Photography by Fred Williams
1986 Chevy Truck Adventure Uphill Rocks

1986 Chevy Truck Adventure Manual Transmission
When we last left off, I was pretty much stranded in Rapid City, South Dakota. For some reason the seal between my NV4500 manual transmission and Lowmax 205 transfer case leaked. All the expensive special synthetic gear lube pumped its way out of the transmission until the gears simply melted. In terms of carnage, this was top-notch stuff. In terms of getting back on the road quickly and inexpensively, this wasn't going to be easy.
1986 Chevy Truck Adventure Transmission Gears
Belly full, I tore into the transmission while my friends from Twisted Customs (where they build rock buggies and use absolutely no manual transmissions) watched and laughed at my good fortune. I didn't know when or how I was going to make it back to the official Ultimate Adventure group, as they had already moved on from South Dakota, but I knew that the Twisted crew would help me in any way possible. They're top-notch guys like that. As I got the transmission apart, I was greeted with the sickly smell of burnt gear oil and more melted bearings and wasted synchros. I began second-guessing the rebuild plan since it would require every single part inside the case getting replaced.
1986 Chevy Truck Adventure Biscuts And Gravy
As with any setback I think it's a good idea to take a step back and look at the big picture. I have found that a plate of biscuits and gravy and a few cups of strong coffee help immensely. So after this gut-busting breakfast we concluded that tearing the transmission apart and fixing it was going to be the best option.
1986 Chevy Truck Adventure 1989 Chevy Worktruck
I spent another day running around Rapid City looking for parts and making phone calls before I finally decided that replacing or rebuilding the NV4500 was going to be extremely expensive. Many of you may assume that we magazine writers are living rockstar lives and rolling with big bank rolls, but it's just not true. We are not "living fat" as the kids say these days, but rather just getting fat from too many servings of biscuits and gravy. Finally we found a solution in the pile of old trucks behind the Twisted Customs shop-an '89 Chevy work truck.
1986 Chevy Truck Adventure 1989 Chevy Parts
This truck, affectionately known as White Cloud, was an old railyard truck that one of Twisted crew had purchased some years back. It was sitting with no doors, a tired TBI V-8, and a four-speed manual transmission. The transmission, an SM465, was a rare version with a long tailhousing, an aluminum top, and 32-spline output, and its length just happens to be within half an inch of the NV4500 five-speed I had burnt up. Plus the bellhousing would bolt right to the Army Truck's 6.2 diesel.

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