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Unread 03-25-2011, 03:06 PM   #1
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Default changing gear ratios

I have heard more and more suggestions about going to a lower gear to achieve more torque.


Is this doable on a 1976 CC?


What does this swap entail??
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Unread 03-25-2011, 03:51 PM   #2
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Default Re: changing gear ratios

First of all on that old a cart you might have a different axle than what cart came with? Rear axles interchange with some minor changes except as shown for your axle. The 1975-1980 used Baldor or GE motors mounted on Terrell axles with hydraulic brakes. Most of the gear ratio changes available seem to be for the newer model axles? Later axles are Graziano and Kawasaki and I have only seen gears for Kawasaki, but others may also be available? AS ALWAYS CHECK WITH FORUM SPONSORS.
It would take a complete tear down of axle and the need in some cases for a press and dial guages to set up correctly.
You could gain most or all the torque you would need, along with MORE speed ( depending on existing axle and motor ) by updating from stock 1976 resistor cart to modern solid state speed control and solid state controller along with 48 volts over your existing 36 volts. These are common conversions and some forum sponsors ( SCOTTYB and others )have parts lists-kits available depending on how much you feel able to install.
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Unread 03-25-2011, 06:02 PM   #3
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Default Re: changing gear ratios

Quote:
Originally Posted by OLD MEC View Post
First of all on that old a cart you might have a different axle than what cart came with? Rear axles interchange with some minor changes except as shown for your axle. The 1975-1980 used Baldor or GE motors mounted on Terrell axles with hydraulic brakes. Most of the gear ratio changes available seem to be for the newer model axles? Later axles are Graziano and Kawasaki and I have only seen gears for Kawasaki, but others may also be available? AS ALWAYS CHECK WITH FORUM SPONSORS.
It would take a complete tear down of axle and the need in some cases for a press and dial guages to set up correctly.
You could gain most or all the torque you would need, along with MORE speed ( depending on existing axle and motor ) by updating from stock 1976 resistor cart to modern solid state speed control and solid state controller along with 48 volts over your existing 36 volts. These are common conversions and some forum sponsors ( SCOTTYB and others )have parts lists-kits available depending on how much you feel able to install.

Thanks for your reply. Do you think an entire rear end swap would do the trick?
Also, can I get a limited slip differential?
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Unread 03-26-2011, 09:53 AM   #4
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Default Re: changing gear ratios

There are torque gears ( about $280.00 ) and limited slip conversions ( about $300.00 ) available for Kawasaki axles only as far as I know? CHECK WITH FORUM SPONSORS. Changing complete differential assemblies requires the use of multi jacks and jack stands, simple tool set, possible need for cutting and welding equipment and a knowledge of wheel alignment and adaption of brake cables and springs depending on which axles used. You are looking at a very heavy asssembly even with motor off that requires several people to handle safely? Removal of batterys is best for safety and elimination of weight ( 400 plus pounds ) and to keep from broken cases and possible shorting and fire?
I really feel that the conversion to solid state and or increase in voltage would be the best in your case, but of course its your cart.
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Unread 03-26-2011, 02:29 PM   #5
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Default Re: changing gear ratios

im with old mec here... i wouldn't touch the gears until after i made the move to solid state and upgraded cables. replacing those 2 elements will likely uncover the torque you are after while actually getting to the root of the problem. simply swapping gears at this point is like "fixing" something with duct tape.
-sj
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Unread 03-27-2011, 06:44 PM   #6
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Default Re: changing gear ratios

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Originally Posted by sonicj View Post
im with old mec here... i wouldn't touch the gears until after i made the move to solid state and upgraded cables. replacing those 2 elements will likely uncover the torque you are after while actually getting to the root of the problem. simply swapping gears at this point is like "fixing" something with duct tape.
-sj

Thanks for the input. And, you're exactly right. I am just looking down the road a piece. I'm an old gear head so I'm well versed in making things fit and work.

Heck, I put a V-8 IROC drive train into a S-10.

So how do we get a 12 bolt posi under this cart?

Thanks guys
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