GS605G Gear Ratios

[Anonymous]

I've been toying with the idea of changing the gear ratio's on my 81.
I'm looking for advice and sources for material.

Thanks.

Kurt Worden

[Anonymous]

Look below... I'm pretty sure that they're all interchangeable, but it looks like there's only two ratios available. You (and me) have 3.09's.

http://www.thegsresources.com/_forum/viewtopic.php?t=15263

[Anonymous]

Andy,

Thanks, I'd read that post and it didn't click. But you caused me to read it again and conduct some additional research. Here's what I've found:

Only the 83 1100's had the option 2.91 ratio (11/32) all other 83's had the same 3.09 ratio (11/34).

The part number's are 27300-34810 and 27300-45811 different fiche cross both gear sets to the opposite p/n , but my best guess is 27300-34810 equates to 3.09 ratio. Simply based on the number of occurrences of that combination. Neither part is available from OEM sources (salvage yard here I come.)

The 84 1100 ratio was 16/17 and the housing is definitely beefed-up (4 point attachment to the swing-arm), so I'm guessing that secondary drive gearing is substantially different.

OK that's one vote for a final drive change ... parts source: salvage yard.
Anyone up on a secondary drive change?
Know of a machine shop that's cranking out new gears?

Kurt

[Anonymous]

The part number's are 27300-34810 and 27300-45811 different fiche cross both gear sets to the opposite p/n , but my best guess is 27300-34810 equates to 3.09 ratio. Simply based on the number of occurrences of that combination. Neither part is available from OEM sources (salvage yard here I come.)

Kurt

Kurt,

Get into the line behind me

Thanks for the part numbers. Very useful.

regards