After two or three years (yes, YEARS), I have finally began making progress on my 51 half ton.

This past weekend I exchanged the 3.00 third member for 3.50 third member formerly residing in my '66 F-100. I also used my new scarificing tip and cut off all the unneeded brackets on the Lincoln Mark VII diffy going under the '51. I almost had the old 235 and 4 speed pulled from the pickup, but a thunderstorm interrupted my work Sunday afternoon. I had these out in 20 minutes this evening. I measured the input housing on the GM 89MM tranny I will be using and will take this housing and my bell housing to a machine shop to have my bell housing bored to accept the larger modern input housing. I was suprised to find that the Muncie M421 was attached to the bell housing with only two bolts inside the clutch housing. Of the other two bolts that point toward the front, one was missing and the other was just started about a turn.

I still need to get freeze plugs in my overhauled 261 and transfer the water pump, distributor, and intake manifold from the 235 to the 261. I may decide to get a Clifford manifold later to better utilize the split exhaust manifold I make a couple years ago.

I may just get this back on the road yet:)

Last edited by Peggy M; 01/19/2023 12:26 AM.
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1951 Chevy 1/2-ton Pickup truck