Pulling Forum - gear reduction box

gear reduction box

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Category: Other Topics
Forum Name: Pulling Forum
Forum Description: Forum dedicated to Tractor and Garden Pulling
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=209229
Printed Date: 23 Jan 2026 at 8:08am
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Topic: gear reduction box

Posted By: HudCo
Subject: gear reduction box
Date Posted: 04 Dec 2025 at 12:50pm

while i am continuing my search for some low gears for my 37wc has anyone fabricated a gearbox to go were the lift shaft gear box is

Replies:

Posted By: PaulB
Date Posted: 04 Dec 2025 at 1:00pm

Yes: There was an aftermarket 2 speed that was either overdrive on underdrive. The underdrive is just want you're looking for if you've gone to big tall tires and don't have the power for them.

Find a set of tires that will work for what little power you have and you'll do just as well in the long run. I've encountered many that swear that to beat those with tall tires, you must also have tall tires. I call BULL$HIT on that. You MUST have tires that work with your available HP, Gear ratio, Balance and track conditions.

I pulled a CA for nearly 30 years and could consistently beat Oliver 66s and Farmall C/SuC and Case VACs with my 24" tires.

Unless you're pulling on the same track with the same weather condition and same preparation each time it will take a lot of track reading and different size tires to find something that works, but after you do all the clubs will start changing the rules on you like they did to me.

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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY

Posted By: HudCo
Date Posted: 04 Dec 2025 at 1:02pm

wondering about taking some gears and shafts out of awd trans and seeing what icould come up with and fab a case for them

Posted By: Phil48ACWC
Date Posted: 05 Dec 2025 at 5:00am

My '48 WC has a Sherman Underdrive either from AC or the original Dealer. High range is 1:1 and Low range is 1.4:1.

Posted By: HudCo
Date Posted: 05 Dec 2025 at 9:48am

don t see any shermans around or i would have it allready plenty for 9n fords

Posted By: Kip-Utah
Date Posted: 08 Dec 2025 at 11:54am

I have a complete WC Hi-Crop rear end with the 6.6:1 ratio that I might consider selling. This is the same ratio as an RC.

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HANSEN'S OLD ORANGE IRON. Showing, Pulling, & Going!!