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Sport master -2 lower
1 complete sport master lower, 1.27 ratio, 1.5:1 overall ratio when coupled with upper.
was a spare for a 39 o/l with 525’s. Will open and inspect gears and bearings, reseal before sale. $3000 obo |
Ttt
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https://cimg6.ibsrv.net/gimg/www.off...4a99122df.jpeg Been in storage a while, will clean up this week and update pics |
Bump |
SO how does it convert to 1.5 ?
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Any drive overall ratio is he upper multiplied by the lower |
Originally Posted by Unlimited jd
(Post 4613865)
Any drive overall ratio is he upper multiplied by the lower |
the upper is not 1:1. Yes all 3 ratios of xr use the same upper gear set, but there is still an input shaft to vertical shaft ratio |
XR uppers are 1.1875 (19/16 tooth) and with this 1.266:1 (15/19 tooth) lower this makes a 1.5 final ratio....too bad there not 1.35 final or I would take them. |
Originally Posted by lucky cat
(Post 4614664)
XR uppers are 1.1875 (19/16 tooth) and with this 1.266:1 (15/19 tooth) lower this makes a 1.5 final ratio....too bad there not 1.35 final or I would take them. |
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