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weim55 · 03-22-2019, 04:16 PM

For your ratio question, first determine which gearbox you have. Four bolt side cover Muncie or seven bolt side cover saginaw. If it is a Muncie it will have a 2.94 first gear. Saginaw ratio is determined by the number of rings on the input shaft. 0 ring = 2.85, 1 ring = 2.54, 2 rings = 3.11 1st gear ratio.

Steve weim55 Colorado

03-22-2019, 04:16 PM	#4
weim55 Registered User Join Date: Jan 2017 Location: Larkspur, Colorado Posts: 904	Re: swapping in a saginaw 3spd OD..need info For your ratio question, first determine which gearbox you have. Four bolt side cover Muncie or seven bolt side cover saginaw. If it is a Muncie it will have a 2.94 first gear. Saginaw ratio is determined by the number of rings on the input shaft. 0 ring = 2.85, 1 ring = 2.54, 2 rings = 3.11 1st gear ratio. Steve weim55 Colorado