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General Category => General Discussion => Topic started by: Groover on July 07, 2022, 01:19:17 PM

Title: 6/32 Gear Ratio Final Drive
Post by: Groover on July 07, 2022, 01:19:17 PM
Which model uses this gear ratio?


https://www.ebay.com/itm/185489684384?hash=item2b300bf7a0:g:EWwAAOSwntxixLPq



Title: Re: 6/32 Gear Ratio Final Drive
Post by: guzzisteve on July 07, 2022, 02:07:52 PM
That was used in 89-90 or thereabouts on Cali's w/full fairing and some w/big valve models. It needs a coupler that is splined like a Vert on one side & normal splines on the other end.
A friend had one on his SP sidecar rig. Rpm was up there at speed. Would be good for the drag strip.
Title: Re: 6/32 Gear Ratio Final Drive
Post by: rocker59 on July 07, 2022, 02:16:43 PM
  Rpm was up there at speed. Would be good for the drag strip.

8/33 is 4.13:1 ratio.
7/33 is 4.71:1 ratio.
6/32 is 5.33:1 ratio.

Yep, it would be good for a Quota or some of the Calis with tall transmission gearing. 
Title: Re: 6/32 Gear Ratio Final Drive
Post by: Antietam Classic Cycle on July 07, 2022, 03:53:16 PM
That was used in 89-90 or thereabouts on Cali's w/full fairing and some w/big valve models. It needs a coupler that is splined like a Vert on one side & normal splines on the other end.

I always though it was a standard 20 spline coupler, but a driveshaft with 20 on one end and 10 on the other.
Medium:

(https://i.ibb.co/C6T6rMH/10-20-medium.jpg) (https://ibb.co/C6T6rMH)

Long:

(https://i.ibb.co/4gTgJhR/10-20-long.jpg) (https://ibb.co/4gTgJhR)
Title: Re: 6/32 Gear Ratio Final Drive
Post by: guzzisteve on July 08, 2022, 09:15:20 AM
Those shafts did not exist in the 90's.
Title: Re: 6/32 Gear Ratio Final Drive
Post by: pressureangle on July 08, 2022, 10:04:17 AM
Shame it's not 10 spline, I'd put it on my 'Sport for those sub-90mph twisties.
Title: Re: 6/32 Gear Ratio Final Drive
Post by: guzzista on July 08, 2022, 12:16:33 PM
I found one of those adapter sleeves with a LM project I worked on. Unfortunately the 6/32 drive was gone so I was never able to sample the difference between the 7/33 and the lower gearing in real time
Title: Re: 6/32 Gear Ratio Final Drive
Post by: Groover on July 08, 2022, 01:52:48 PM
The housing part number is a little different than the older Tonti boxes, would this fit say a G5 or SP? (I'm not going for it, just curious)

The G5 housing part number is 17350305 this one is 37350305
Title: Re: 6/32 Gear Ratio Final Drive
Post by: guzzista on July 08, 2022, 05:42:04 PM
Don't  most 1975-2001 rear ends from T3 on  interchange if the spacer inside the drive is the correct one for  the wheel. you are using ?