I might be wrong, but I don't think any HydraMatic linkage attaches to the bellhousing. I know it didn't in 55.2.

Below is from 1954 GMC Master Parts Catalog.
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Last edited by Bill Hanlon; 04/29/2026 4:46 PM.
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.