In my opinion, if you race on any kind of medium/high grip and you want to be competitive you can’t run a servo saver in a 4wd, any 4wd. If you do you’ll loose lock on load which is no good.
Assuming you have a metal geared servo. What you want is a KO or Fastrax servo horn pack. These come with a steel ring round the outside of the spline area to stop them stripping. I have ran these on every 4wd car I’ve ever had (4 years of running) on my 2123’s and never damaged a servo on the XXX4’s, xx4 and X5’s I’ve ran. Fastrax ones are fluro colours, KO do them in a stealth black, can do you a pic tonight if you need?
Dan
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Nortech is ACE!
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