Differential Gear Ratio

ted4420 · 04-24-2009, 08:26 PM

I would like to know how to check the differential gear ratio while the differential is in the cart? How many revolutions of the driven clutch to how many revolutions of the tires? What are the ratios? What is the tooth count on the ring and pinion for each available ring and pinion sets? Thanks, Ted

ruredy · 04-24-2009, 11:56 PM

find the center of your wheel/tire measuring across, use a framing square and mark the bottom and top of your tire, so you can be sure it lines up straight up and down. find and mark a reference point on the driven clutch and count the the number of times you rotate the driven clutch to get the wheel/tire to make one rotation. I believe the ratio of your cart is 13.25 to 1, reverse is 14.36 to 1 if no one have changed it. the tooth count is another way to tell but i don't have any apart to count at the moment

Dane makes these rears with several ratios, yours would be model (H-12 FNR)
http://www.dana.com/offhighway_syste...t/OPE-2004.pdf

ted4420 · 04-25-2009, 10:16 AM

Ruredy, Thanks for all the information. I will check it out. My differential is from a Ezgo 952G Industrial 6 Passenger Shuttle. It has Heavy duty hydraulic drum brakes in the rear and 6" disc brakes in the front. It does seem like it is low geared. With my built 23hp Vanguard it goes faster than I really want to drive it in my neighborhood. Thanks again for all the information, Ted

OCMonster · 04-29-2009, 04:10 PM

My cart tops out at 21mph, But I believe this is due to the rear end gears being gear too low?

WickedCarts · 04-29-2009, 04:15 PM

Quote:

Originally Posted by OCMonster

My cart tops out at 21mph, But I believe this is due to the rear end gears being gear too low?

no strech has put a govenor on it plus you have smaller tires... your cart should run 30mph

OCMonster · 04-30-2009, 04:55 PM

Quote:

Originally Posted by WickedCarts

no strech has put a govenor on it plus you have smaller tires... your cart should run 30mph

Sent PM-Will do bigger tires and wheels when tires wear out. is OCMC still around?

biohazard1965 · 11-15-2010, 02:21 PM

I got a question. I have 2 different rear ends. Both out of EZ Go Workhorse 1200's. When I rotate the brake hub, it will rotate 1 complete turn to the clutch shafts 13 rotations so its 13/1 ratio. The other rear end is 7/1 ratio. Of these 2 rear ends, which one will give me more top end? 13/1 or 7/1?

WILD-BILL · 11-24-2010, 10:28 PM

The 7/1 will give more top end yet sacrifice some low end

Gearhead1956 · 12-17-2010, 05:15 PM

Ok i just checked rear end in my 99 Yamaha gas. turned clutch 5.75 times to turn wheel once, that is fastest gear I have seen on here.

04-24-2009, 08:26 PM	#1
ted4420 Gone Wild Join Date: Nov 2007 Location: Highland,CA Posts: 240	Differential Gear Ratio I would like to know how to check the differential gear ratio while the differential is in the cart? How many revolutions of the driven clutch to how many revolutions of the tires? What are the ratios? What is the tooth count on the ring and pinion for each available ring and pinion sets? Thanks, Ted

04-24-2009, 11:56 PM	#2
ruredy Born Wild Join Date: Mar 2007 Location: Clover SC. Posts: 5,552	Re: Differential Gear Ratio find the center of your wheel/tire measuring across, use a framing square and mark the bottom and top of your tire, so you can be sure it lines up straight up and down. find and mark a reference point on the driven clutch and count the the number of times you rotate the driven clutch to get the wheel/tire to make one rotation. I believe the ratio of your cart is 13.25 to 1, reverse is 14.36 to 1 if no one have changed it. the tooth count is another way to tell but i don't have any apart to count at the moment Dane makes these rears with several ratios, yours would be model (H-12 FNR) http://www.dana.com/offhighway_syste...t/OPE-2004.pdf

04-25-2009, 10:16 AM	#3
ted4420 Gone Wild Join Date: Nov 2007 Location: Highland,CA Posts: 240	Re: Differential Gear Ratio Ruredy, Thanks for all the information. I will check it out. My differential is from a Ezgo 952G Industrial 6 Passenger Shuttle. It has Heavy duty hydraulic drum brakes in the rear and 6" disc brakes in the front. It does seem like it is low geared. With my built 23hp Vanguard it goes faster than I really want to drive it in my neighborhood. Thanks again for all the information, Ted

04-29-2009, 04:10 PM	#4
OCMonster Not Yet Wild Join Date: Apr 2009 Location: Claremont, CA Posts: 56	Re: Differential Gear Ratio My cart tops out at 21mph, But I believe this is due to the rear end gears being gear too low?

11-15-2010, 02:21 PM	#7
biohazard1965 Not Yet Wild Join Date: Nov 2010 Posts: 4	Re: Differential Gear Ratio I got a question. I have 2 different rear ends. Both out of EZ Go Workhorse 1200's. When I rotate the brake hub, it will rotate 1 complete turn to the clutch shafts 13 rotations so its 13/1 ratio. The other rear end is 7/1 ratio. Of these 2 rear ends, which one will give me more top end? 13/1 or 7/1?
biohazard1965 Not Yet Wild Join Date: Nov 2010 Posts: 4

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11-24-2010, 10:28 PM	#8
WILD-BILL Gone Wild Join Date: Jun 2009 Location: BROOK PARK, OH Posts: 194	Re: Differential Gear Ratio The 7/1 will give more top end yet sacrifice some low end

12-17-2010, 05:15 PM	#9
Gearhead1956 Gone Wild Join Date: Dec 2010 Location: Woodstock,GA Posts: 1,088	Re: Differential Gear Ratio Ok i just checked rear end in my 99 Yamaha gas. turned clutch 5.75 times to turn wheel once, that is fastest gear I have seen on here.

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