to shim or not to shim

[CRAWLERJOE]

I need to replace diff gears in my wraith due to wear abd was told that I should shim the gears when I put them in. I was wondering if this necessary and how many do this.

[railripper]

I'd like to know too, I got my first set of wraith axles coming soon.:thumbup:

sent from a mobile device dumber than me.

[rm25x]

i guess it depends how sloppy the pinion gear is with the driveshaft installed.

[sperd]

I have been building 1-1 differentials for 14 years now and you need some back lash 1 to 1 is generally 6-10 thousandths if that gives you any idea just dont build it to tight it will cause your gears to wine and wear.

[CRAWLERJOE]

Originally Posted by sperd

I have been building 1-1 differentials for 14 years now and you need some back lash 1 to 1 is generally 6-10 thousandths if that gives you any idea just dont build it to tight it will cause your gears to wine and wear.

Thats what I was thinking. I was afraid of getting it to tight and basically cause binding or excess resistance.

[railripper]

X2. I've never had to space scx10 axles cause the fit was good. We will see when my axles get here.
Thanks sperd:thumbup:

sent from a mobile device dumber than me.

[LuvMyTJ]

On my 1:1 Jeep I shimmed them as you should. But on my RC's I have never had had to shim an axle gear set.

[Natedog]

Originally Posted by railripper

X2. I've never had to space scx10 axles cause the fit was good. We will see when my axles get here.
Thanks sperd:thumbup:

sent from a mobile device dumber than me.

I always shim RC diffs and trannies, SCX Honcho and AX-10 were pretty loose and needed lots of shimming especially in the diffs. Wraith was much better and needed almost zero shimming. A little loose is better than too tight, but most are way too loose without any shims.

[Dostradamas]

Originally Posted by Natedog

I always shim RC diffs and trannies, SCX Honcho and AX-10 were pretty loose and needed lots of shimming especially in the diffs. Wraith was much better and needed almost zero shimming. A little loose is better than too tight, but most are way too loose without any shims.

Could you give us some description of too sloppy?
Too tight?
Just right?
I know we are talking about a feel / experience thing but I wonder if there are some indicators a less experienced person could use.
I have been running the stock ring & pinions on my Wraith with the dog bone axles. I am upgrading to lockers, universals, AL bearing caps, Brz bushings on pinion shafts & HD ring & pinions so if I need to shim I would like to take care of that when I am doing all the others.

[Cableman]

After installing hd gears and vp everything i used these TowerHobbies.com | Team Durango Shim 5x8x.5mm (10) on the exterior of the pinion shaft. I tried it on the inside but it made the gears too tight. Theres prolly a 1mm gap between my mips and the pinion bearing, by putting 2 shims there it stops the pinion from moving in!