There is also a special seal that moves the lip 1/8" forward or backwards (I can't remember which) on the balancer for use if the balancer has a groove. I have one somewhere in my spares. If I remember right it has the regular part number with an X on the end.
'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.
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