It should work on most planetary Diffs but not Ball Diffs. like the ones in the 4-Tec

It is just the Stock Tamiya Diffs that look similiar to the one in the Diagram..

We have tested Blu-Tac and it will lock the Diff down to 15 Turns, Below 15 Turns, Blu Tac just makes the Diff LSD..

This Should assist those Who want to experiment with a locked Diff but are not Sure they Want to keep it..

The Blu Tac does last if the Diff is packed nice and tight.

If you Dont like Having a Locked Diff the Removal process is Easy.

Remove the Blu Tac or Play Dough, Clean the Gears, re-Grease and Re-assemble.

Blu Tac Locking will work on Front and Rear Diffs But we Advise that locking the Front Diff Can Cause Under Steer Problems So lock the Rear only and Get that Tail Out and Keep it out !

Blu-Tac has been used to Lock Diffs in RC Cars For Years... I was not the one to Invent the Idea.. We Know it Works. It can be Used in 1:18th and 1:12 Scale Cars with Planatery Diffs.