best way to run in rear ball diff

moggy12 · **Joined:** Fri Aug 06, 2010 21:26:41 **Posts:** 54

just bought a new rear ball diff for my t3 whats the best way to run it in ? i race indoors on carpet and want it to last thanks for any replies

markw · **Joined:** Tue Mar 15, 2011 11:47:57 **Posts:** 20

check this video out

http://www.youtube.com/watch?v=YOMu6Fu3 ... re=related

sidecarphil · **Posted:** Sat May 28, 2011 17:37:43

did you buy a complete new diff ??

if so i find that from new they are not very good i ALWAYS rebuild them with nice good diff grease and sand the diff rings as Jilles does in the video

zzoebl · **Posted:** Sun May 29, 2011 01:58:16

YELLOWSHARK · **Posted:** Sun May 29, 2011 17:35:38

Personally I have never touched a new XRAY diff - they have never let me down in 4 seasons - maybe the one's sold in England are better than those in Holland?

Tighten it up so it is "loose" but you can feel resistance.
On the bench - as per ZZOEBL.
I then tighten 1/8 turn and repeat
I keep on repeating until I get to the tightness I want.

Alternativley run the car on the track, not too fast, for a couple of laps, tighten, repeat.
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Then run the car for 5 mins at normal speed and recheck tightness.

XRAY - Model racing cars

best way to run in rear ball diff

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