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Super 77 Ring and Pinion


 
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Ollie88D
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Joined: 27 Aug 2010
Posts: 96
Location: West Virginia

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PostPosted: Fri Sep 14, 2018 5:24 am    Post subject: Super 77 Ring and Pinion Reply to specific post Reply with quote

I know Oliver offered 5 different ring and pinion combinations for the 88, but does anyone know how many R&P combos were available for the 77/S-77?
Currently goes 3 mph in 1st gear at 1500 rpm with 16.9-38 Firestone's.
Thanks!
 
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J. Schwiebert
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Joined: 27 Sep 2013
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PostPosted: Fri Sep 14, 2018 5:30 am    Post subject: Re: Super 77 Ring and Pinion Reply to specific post Reply with quote

To start with what are the last 3 digits of your serial number 702 or 705?
 
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Ollie88D
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Location: West Virginia

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PostPosted: Fri Sep 14, 2018 6:23 am    Post subject: Re: Super 77 Ring and Pinion Reply to specific post Reply with quote

Last three digits are 702.
 
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J. Schwiebert
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PostPosted: Sat Sep 15, 2018 4:57 pm    Post subject: Re: Super 77 Ring and Pinion Reply to specific post Reply with quote

There you had your choice of the 702 and the slow speed 705. The 702 was a set of 11/ 50 gears 2.45 MPH @ 1600 on 11-38 tires @ 1600 RPM or 705 with 9/48 bevels which was 1.91 MPH at the same RPM and the same size tires.
 
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