Originally Posted by nightcrawler48 (Post 5934300)

3 link is used almost exclusively when the steering servo is chassis mounted (CMS) rather than being mounted on the axle. 4 link is pretty much standard for axle mounted servos.



The reason for the 3 link with CMS is you need a panhard bar locking the side to side movement of the axle to reduce/eliminate bump steer caused by the suspension articulation. If you were to use a 4 link and panhard bar you would restrict suspension articulation to almost nothing.



Used to be CMS was an upgrade either from the OEM or from the aftermarket. Seems now everyone is jumping on the bandwagon and many of the manufacturers are offering it as standard, Axial Wraith 1.9, Axial SCX10.2, Vaterra Ascender, Redcat Gen8, etc.



Stick with the 4 link on the rear.

Originally Posted by ClovisCrawler (Post 5934372)

I have a first gen SCX-10 that I want to upgrade to CMS. Do I maintain the 3-link because of the upgrade? I was planning to upgrade the front to 4-link also


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Originally Posted by nightcrawler48 (Post 5934768)

The SCX10.2 is really a true 4-link with one of the upper front links removed. Your gen1 has what they called a 3-link but differs in that the upper link is called the "Y" link. The link is bolted to the right and left chassis rails and the 3rd connection is to a pivot connection on a bracket on the axle. The true 4-link has 2 separate upper links and the bracket bolted to the axle is different than what you have on your 3-link. If I remember correctly there were some SCX10.1 that had the 3-link on 1 axle and a 4-link on the other but I can't remember which axle had which setup.



So to convert your SCX10.1 to CMS, you probably want to do the true 4-link upgrade to both the front and rear and then remove the 1 front upper link. Check out the Axial website for a manual for the SCX10.2 to get an idea of how they do the CMS on the SCX10.2.



Its rare to see anyone running the 3-link setup you have as most have upgraded to the true 4-link setup.

Originally Posted by hobbyjumper (Post 5934804)

By the way, for next time, this is the AX10 sub-forum. What you have--lucky you--are an SCX10ii and, well, not an AX10 (there is a Wraith forum). Easy mistake to make, posting in the wrong place. No biggie but it might limit the number of reads and answers you get. Don't be afraid of the Newbie forum. I still use it.

Cheers and have fun ripping it up.

Originally Posted by Texas_Jester (Post 5935238)

My bad, thanks, I completely missed that when I posted.