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Old 10-20-2012, 08:55 AM   #1
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Default underdrive rear only

I've read some on this, but there was soo much on od front/ud rear.
Has anyone ran just the 43t/13t underdrive in just the rear of thier scorpion with the stock ratio still in front. If so, did you like it and did it work good and can you really tell much difference?
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Old 10-20-2012, 09:22 AM   #2
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Default Re: underdrive rear only

Yes you can do it. It works just fine and is a bit noticable. Doesn't work as well as ud/od, but it does help.
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Old 10-20-2012, 11:49 AM   #3
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Default Re: underdrive rear only

I use that set up in my scaler. With vanquish VVP's it works well. In a comp rig I would go with both ud/od.
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Old 10-20-2012, 01:04 PM   #4
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Default Re: underdrive rear only

I liked it going to add to scaler.If running comp rig i would od/ud.
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Old 10-20-2012, 05:18 PM   #5
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Default Re: underdrive rear only

I like to underdrive and counter rotate the drivelines to eliminate torque twist.
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Old 10-20-2012, 05:30 PM   #6
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Default Re: underdrive rear only

O/D the Front and U/D the rear,.........especially on Wide axles....Helps 100% in steering....
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Old 10-21-2012, 11:07 PM   #7
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I use ud only. Not bad in steering and great help on uphills.
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Old 10-23-2012, 08:35 AM   #8
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Default Re: underdrive rear only

Thanks for the replies! Yeah, I finally got the ud's and wanna in stall them, but wanted to make sure they are worth installing and that I would see some difference.
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Old 12-22-2014, 08:37 PM   #9
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Default Re: underdrive rear only

I ordered OD & UD but the fronts are back-ordered so I will be installing UD in the rear only for now.

Searched and found this thread. Thought I'd put in my $0.02

Happy to hear it's OK to do.
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Old 12-23-2014, 01:04 PM   #10
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Default Re: underdrive rear only

Yeah, I've probally done 3 AX-10's with the ud gears now and it works great on a trail truck!
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Old 01-01-2015, 07:35 PM   #11
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Default Re: underdrive rear only

I've od gears up front and it worked well.
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