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rotorwrench · 06-04-2018, 10:11 AM

The 15/29 set is OK for light body car with a 3.54:1 rear axle ratio. The 16/28 set works well with the 3.78:1 ratio in about any application light or heavy but will run higher engine rpm at the same speeds. The Lincoln gear sets were used with 4.11:1 or greater ratio rear axles and many Lincoln car transmissions had the overdrive but the inputs and clusters will fit the 78 case.

As long as it has a 78 series case, it will fit anything that was made to fit in there.

06-04-2018, 10:11 AM	#8
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,436	Re: Trans identification (year) The 15/29 set is OK for light body car with a 3.54:1 rear axle ratio. The 16/28 set works well with the 3.78:1 ratio in about any application light or heavy but will run higher engine rpm at the same speeds. The Lincoln gear sets were used with 4.11:1 or greater ratio rear axles and many Lincoln car transmissions had the overdrive but the inputs and clusters will fit the 78 case. As long as it has a 78 series case, it will fit anything that was made to fit in there.