Not Ranked
Basicly there are 2 top loaders, a BB and SB kind( this doesn't include the close or wide ratios or tailshafts,just basic construction). The BB has a bigger input shaft. Many Mustangs of the years you mentioned came with Big Blocks,so the trans may have been the correct type.BBs came in Mustangs and Cougars since 1968, they ran through the early 70s.
__________________
WDZ
|