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good morning, ok I think its time for me to start a new thread on this from my origanal cyl head question thread earlier, here is where my son and I are at with this project, 318/727 are out of the 80 1/2 ton two wheel drive, 360, a833, bell housing, and flywheel are in peices on the ground, turns out the 360 crank is drilled to accept a pilot bushing and we have one ready to go in, no problem there, research tells us that the 318 crank is internally ballanced and the 360 is not therefore requireing the 360 to have a special flywheel requiring it to be ballanced which I beleive is done by drilling holes or adding weights to it, we have three flywheels currently, one is the unballanced 318 one,(actually it came oyt of a 273 commando 69 cuda), this one measures roughly 13" across although I think the actual correct measurment is 12 7/8", not totally sure?, the other two are 14" diameter and seem to be externally ballanced one has three holes drilled on the outer perimiter facing the engine, two together and one further away and the other has only one drilled, I also beleive the tooth count is different the 14" is 143 ( i counted) and the 13" I beleive is 130, not confirmed yet, it seems most if not all 360's in trucks came with the " rock crusher" tranny while many 318's came with the a833 in the 81 and up vintage also this same set up was used in cars, so we havnt had a chance to put the puzzel together yet but I think we need some guidence here, I would think that surely back in the 70's some where there must have been some 360 darts or challengers that were factory and I think that would be the flywheel that we would need, but was it the 13" or 14"?, how many teeth, any ideas or thoughts here before we move forward with our "360 shifty" would be appreciated