Tamiya mini cooper
Tech Fanatic
iTrader: (72)

Quick question for you guys...
...what is the best way to "stiffen" the action on a TA-03 ball diff I'm running in my M05? It is currently built per the directions but I would like to tighten the action beyond the diff nut being locked down.
Thanks!
...what is the best way to "stiffen" the action on a TA-03 ball diff I'm running in my M05? It is currently built per the directions but I would like to tighten the action beyond the diff nut being locked down.
Thanks!

The ofna diff lock lube is the only way to get a tighter diff with the current lock nut. If you try to increase the tightness of the nut with a bigger wrench, you will break the diff bolt for sure...

Break the TA03 diff bolt? You'll strip the pressure plate long before that would happen. It's a very large bolt.

These bolts are very small to me... I've broken a few grade 8 bolts under my Jeep, so I don't want to advise people to go at it all out....

They might be a relatively large fastener, but they're made from compressed spam. Also, being a hollow fastener, there's not as much bulk keeping the head and the shank together. I've never broken one while tightening, but I've stripped the threads and had one fail during a race.

You strip the opposite plate not the screw. Done it quite a few times. Alwaysz when using a nut driver with s handle. Best is to use the small Tamiya nut wrench that most of us probably have s few of these since they're included in most Tamiya kits.
Tech Rookie

Adding in a 0.2mm spacer (as you get with the rear axles) will help tighten it up

Just in case you want to pay way more for less, Hudy is selling tiny rolls of repackaged 3M two sided tape!

Tech Master
iTrader: (13)
Tech Rookie

Is there any one who sources wheels for the m class that foam can be mounted to?
Tech Fanatic
iTrader: (54)

I have a M05 v2. Just wondering if I should set up the gear diff tight or loose? Running on black carpet indoors.

Would anyone be interested in this? I was going to EBay it but figured someone here may be able to use it.

Anyone has a Mini JCW body for sale?