Need some info on diff gear ratios.

2008 High Lifter Edition Polaris Sportsman 800HO

Need some info on diff gear ratios.

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Need some info on diff gear ratios. - 7/25/2008 12:49:41 AM

gotmuddy

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From: N. Arkansas
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IRS big bear rear diff gear ratio, 450/660 rhino rear diff gear ratio please. kthxbye.

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RE: Need some info on diff gear ratios. - 7/25/2008 9:20:37 AM

LiveForMud

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pretty much all yamahas bigger than the 250s use 3.6:1 gears (33/9)... grizzlys, big bears, wolverines, kodiaks, bruins, etc etc

the old timberwolfs used lower 4.16:1 gears (46/11).

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RE: Need some info on diff gear ratios. - 7/25/2008 10:40:43 AM

gotmuddy

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From: N. Arkansas
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thanks for the info. I wonder if the rhino diffs are lower.

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quote:

ORIGINAL: baf004

That'll buff right out.

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RE: Need some info on diff gear ratios. - 7/25/2008 11:11:22 AM

LiveForMud

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from the parts diagrams i've seen, the rhinos use the same 33/9 gear set in the diffs.

i've been trying to cross-reference parts from the 450 and 660/700 engines... the 450's trans is geared a fair bit lower and could be a big help to the 660/700 grizzlys if the parts will swap over. need someone with some experience in these engines to check this out.

_____________________________

2005 RED AC 500M (on vacation for now)
Remote mounted g.o.r.i.l.l.a. 3k lb winch
PC680 battery
iEquus 8068 3 3/8" tach
Reloc'd radiator
26-in XTRs
some other stuff
!seals, !brakes, !traction, !money, !sanity...

Dad's NEW ride- 06 Foreman S 4WD

(in reply to gotmuddy)

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RE: Need some info on diff gear ratios. - 7/25/2008 1:37:50 PM

YAMAFORD

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Joined: 9/23/2006
From: Oakfield Ga.
Status: offline

Not meaning to steal the thread but I checked on this last time I had my cases apart. The rhino has a lower middle drive gear (450 even lower) than the 660 grizzly. The problems are that the rhino also has a tendancy to eat engine cases due to the fact that the cases are bored a little thinner to get the larger gear to fit

thuse weakening the case. The second problem,,, althogh I have no proof of this becouse I have not phisicaly seen the middle gear for a rhino but I think it is the gear that alows the engines to be installed backwards. Hey If you could get it to work you would have 2 reverse gears and be able to back out of the nastiest of stuff!

As for the trans there are to many differences.

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