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10-28-2011, 11:51 PM

#1336

Cpt.America

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Quote:

Originally Posted by mjealey

1. What gearing would be a good place to start? I will be running a Tekin RS Pro and a 13.5 Redline to start.

Quote:

Originally Posted by Jason Snyder

87/22

87/22 is WAY WAY under geared for a 13.5. For a 13.5, you are going to need to be around 87/29-30, which will not fit in the buggy. The largest pinion you can run with the factory spur is 25, which is under geared for even my 9.5 turn. Your best bet would be to carefully ream out a 78 tooth AE spur, and run a 28 pinion.

10-29-2011, 12:15 AM

#1337

T-BirdJunkie

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Quote:

Originally Posted by Cpt.America

x2, that's undergeared for an 8.5, let alone a 13.5.

10-29-2011, 05:42 AM

#1338

Matt Howard

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I ran boosted 13.5 last weekend and ran 79/28, just reamed out a B4 spur until the RW spurs are available.

10-29-2011, 03:23 PM

#1339

Bman's 3XNT

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Guys when installing the diff in the gear case,which side does the plastic nut go on? I run RM 3 gear setup. It looks in the book that the adjustment side is on the pinion side. Is this correct? Thanks guys.

10-29-2011, 04:24 PM

#1340

Matt Howard

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Quote:

Originally Posted by Bman's 3XNT

you're correct, the adjustment side is on the right with the RM3 setup

10-29-2011, 05:06 PM

#1341

x7tristan

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Quote:

Originally Posted by Matt Howard

you're correct, the adjustment side is on the right with the RM3 setup

Really? Won't that make the screw unscrew itself when you apply power?

10-29-2011, 05:15 PM

#1342

BRIAN77

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hi guys im putting together my 210 with rm4 now what side does the motor go on. i already put it together and its seems like the motor goes to the right side of the car is this right ,, please help

thanks ,,,brian

10-29-2011, 05:26 PM

#1343

Matt Howard

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Quote:

Originally Posted by x7tristan

Really? Won't that make the screw unscrew itself when you apply power?

look at the pics in the manual, the adjustment screw head goes on the right side

10-29-2011, 05:27 PM

#1344

Matt Howard

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Quote:

Originally Posted by BRIAN77

RM4 the motor will be oppposite from what your used to, the solder tabs will be on the right side

10-29-2011, 05:44 PM

#1345

x7tristan

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Quote:

Originally Posted by Matt Howard

look at the pics in the manual, the adjustment screw head goes on the right side

The manual is wrong, I followed the manual and my diff unscrewed itself when you held one wheel. All other classic RM3 have the NUT on the spur side

10-29-2011, 05:58 PM

#1346

Matt Howard

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Quote:

Originally Posted by x7tristan

The manual is wrong, I followed the manual and my diff unscrewed itself when you held one wheel. All other classic RM3 have the NUT on the spur side

two weeks racing and my diff is fine, built per the manual.

10-29-2011, 06:24 PM

#1347

BRIAN77

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thank you matt .. how do u like the rm4 over the rm3.

thanks again ,,,BRIAN

10-29-2011, 06:27 PM

#1348

Matt Howard

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Quote:

Originally Posted by BRIAN77

thank you matt .. how do u like the rm4 over the rm3.

thanks again ,,,BRIAN

I've only run RM3 so far. I run on a pretty high traction indoor track so I don't need the extra rear traction from the RM4 setup.

10-29-2011, 06:42 PM

#1349

ChEmDoCtOr

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I was playing with an out of box Durango yesterday, man, this thing handles pretty good, and pulling out the diff takes all of 5 seconds! They need a buggy!