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Thread: Underdrive for the R1... Finally

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Old 05-09-2016, 04:46 PM   #41
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Default Re: Underdrive for the R1... Finally

This should not affect bearing life much if at all. That is you won't notice any bearing life difference.
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Old 08-01-2016, 04:47 PM   #42
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Default Re: Underdrive for the R1... Finally

I love this!!.....Cheap mod, better than $$$ rear steer.....I'm liking this, I am trying to get the metal bearing support cups, can't find them in the USA
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Old 09-19-2016, 06:30 AM   #43
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Default Re: Underdrive for the R1... Finally

Quote:
Originally Posted by Natedog View Post
This should not affect bearing life much if at all. That is you won't notice any bearing life difference.


As those teeny bearings have a life span !!


HANG UP AND DRIVE !
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Old 09-19-2016, 06:31 AM   #44
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Default Re: Underdrive for the R1... Finally

I popped for the rear steer, WOW !!!completely different rig, does not get stuck....


HANG UP AND DRIVE !
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Old 10-06-2016, 06:51 PM   #45
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Default Re: Underdrive for the R1... Finally

Great job on the mods and thank you for posting the methodology. Can this mod be done if you have rear steer?
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Old 10-06-2016, 06:58 PM   #46
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Default Re: Underdrive for the R1... Finally

I thought about it before the rear steer, now I really don't need it, these tires and the motor combo get me through anything so far


HANG UP AND DRIVE !
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Old 10-06-2016, 07:39 PM   #47
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Default Re: Underdrive for the R1... Finally

I also have rear steer and was wondering if this mod would help the crawling ability when you are not turning. You are running the Proline Interco TSL SX Super Swamper XL 2.2"?
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Old 10-07-2016, 05:16 AM   #48
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Default Underdrive for the R1... Finally

Yup, I have the underdrive setup on my Bully2 and Yeti, it does helps crawling, these tires really grip in rocks


HANG UP AND DRIVE !

Last edited by mikemcE; 10-07-2016 at 05:52 AM.
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Old 10-12-2016, 02:22 PM   #49
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Default Re: Underdrive for the R1... Finally

Looking forward to trying this mod out on a new R1 I just picked up last week (there are a few folks out there like this guy still interested in the R1 platform I guess)

Last edited by Thinkcooper; 10-12-2016 at 05:24 PM.
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Old 04-12-2017, 04:59 PM   #50
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Default Re: Underdrive for the R1... Finally

Just followed this thread and swapped gear sets around among my Sawbacks and R1 axle'd Wraith Wraith + R1 Axles

Great idea and write up! I will add that I used the R1 ring gear ilo the Sawback one. I thought the Sawback gear was too narrow and I was a bit concerned with how little axle was in the locker. I just ground down one side until the gears meshed up, then shimmed from there. Got much more axle engagement.

Can't wait to try it out!
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Old 04-13-2017, 08:52 PM   #51
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Default Re: Underdrive for the R1... Finally

Quote:
Originally Posted by bill mossor View Post
thanks for your post it was very informative . I'm getting a sawback. Do you think it will work to put the R! gears in the sawback to give it over or under drive ?
Jeepiac did it a couple years ago. See his posts below in link.

Overdrive your sawback

Cheers!
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Old 06-05-2017, 09:48 AM   #52
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Default Re: Underdrive for the R1... Finally

Quote:
Originally Posted by Thinkcooper View Post
Looking forward to trying this mod out on a new R1 I just picked up last week (there are a few folks out there like this guy still interested in the R1 platform I guess)
With a lot of work, the R1 is a pretty capable rig. And that is what I like about it. Working on it is half the fun.
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Old 06-12-2017, 09:31 AM   #53
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Default Re: Underdrive for the R1... Finally

Just assembled my R1. It immediately did the steering mod and have machined the knuckles to increase steering 15% easy. I had to bow the stock steering link as well since the link was immediately hitting on the dif cover. Slight bend and some adjustments to rod ends to open steering back up a bit. I have ordered the sawback ring and pinion and going to mod the rear dif next. I did notice that there are other clearance issues. I temporarily put wideners on the front to resolve. electronics after the rear dif mod. Looking forward to first run....I also agree that working on these rigs is 1/2 the fun. Thanks for ALL the links and tips.
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Old 06-29-2017, 10:12 AM   #54
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Default Re: Underdrive for the R1... Finally

Thrilled to see that this thread has been helpful to you guys!
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Old 09-11-2020, 10:03 PM   #55
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Default Re: Underdrive for the R1... Finally

Three years later - this amazing idea is still used and highly appreciated. Just did this mod on my R1 - and it works perfect. Thanks supermoturd!
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