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01-21-2021, 07:46 PM | #1 |
Member
Join Date: Jul 2014
Location: orrington, maine
Posts: 89
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TT differential to a T defferential
I am wondering if I can replace my TT differential with a regular T differential? I'm not hauling any load but would like more road speed. Any ideas?
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01-24-2021, 02:57 AM | #2 |
Senior Member
Join Date: May 2010
Location: Portland OR
Posts: 6,358
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Re: TT differential to a T defferential
No. Different mounting, different wheel base, different springs and spring mounts. Couple of choices; spend between 1000 and 2000 for the high speed ring gears or get an add on aftermarket transmission with overdrive.
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02-07-2021, 11:44 AM | #3 |
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Join Date: Apr 2018
Posts: 87
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Re: TT differential to a T defferential
Most TT's come from the factory with 7:1 rear. That equals 17 mph.
5:1 gears will give an easy 25 mph, and if you run high rpm will give you 35. 5:1 gears are scarce and relatively expensive. But you need either 5:1 gears or an auxiliary transmission with over drive to run a TT at over 17 mph as recommended by Ford if you have 7:1 gears. I have a set of used, but serviceable 5:1 gears for a TT. Let me know via pm if you are interested... |
02-13-2021, 06:35 PM | #4 |
Senior Member
Join Date: Jul 2014
Posts: 161
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Re: TT differential to a T defferential
I think a regular T rear axle would be too light. However I have seen two TT trucks with Model A car axles, one with a later V8 axle, and one with a modern Ford (maybe Explorer) axle. You have to do your own fabrication for spring and radius arm location.
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02-14-2021, 10:34 AM | #5 |
Senior Member
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,511
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Re: TT differential to a T defferential
Here is a link to the Warford over-under gearbox:
http://www.mtfca.com/discus/messages...tml?1440509219 There were others including the Tiger gearbox that bolted to the rear axle input and the Ruxtell 2-speed rear axle. While none of them are common in this day and age, there are likely still repairable examples of these units still out there. |
02-15-2021, 10:34 PM | #6 |
Member
Join Date: Jun 2011
Location: Noxon, MT
Posts: 83
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Re: TT differential to a T defferential
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