You can try Tamiya 54477. They are the metal drive cups that fit into the gear differential. But it is listed for universal drive shafts. It should still engage the dogbones properly.

You can use TT01 differentials in the TT02. They have metal internal gears but with 3 spider gears instead of 4.

Edit: if you decide to go with TT01 diffs, use 53790 drive cups instead of the TT02 ones. The TT01 drive cups have a metal shaft that connects the left and right side outdrives.

​​​​​​Thanks.... I was thinking the same thing. I mean how different can that end of the dog bone and universal actually be?? If they don't work out what is the harm in using the stock plastic drive cups??

Did everyone here about the new ESC tamiya will be including in the tt02 kits??? It's the tble-04s and it's a slight upgrade to the tble-02 in certain areas. It has a low and hi battery cut off voltage. The low is 5.6v and the high is 6.2v. I wonder if the high cut off is enough not to ruin a 2s lipo. That means it's 3.1v per cell. Is that still too low for a lipo??

In my opinion 6,2V is too low as cut off voltage for 2S Lipo.
As always, ESC is monitoring the pack voltage and not the cell voltages. It may happen that the pack discharges unbalanced and one cell is already way below 3.0V (not good!) and the other one still above before cut off kicks in. I would like to see a cut off voltage of min. 6.5 or better 6.6V to safely (kind of) use Lipo batteries.

Ok....got it. Does Tamiya make a lipo ready ESC??? If not I'll just go with Hobbywing. Another question: what ESC do they use in the TCS spec/novice class when a lipo is used with the stock brushed motor?

Tamiya does not have an ESC featuring a Lipo friendly cut off voltage. They are all build to use LiFe or NiMH Batteries.
But you can use a dedicated Lipo warner instead of anorher ESC.

Well not exactly yet....I finally got to order my TT02R from Towerhobbies. It has been out of stock like FOREVER everywhere except from Tamiya USA and I didn't want to pay that price. I just sold my Tekno eb48 2.0 that wasn't being used because the local tracks near me are always closed except for big races. So I decided to get a TT02 and have some fun whenever I want, I don't need a dirt track for that. I eventually want to start club racing with it too. My driving skills aren't the best and my knowledge of on road racing is limited so that's why I skipped the high dollar chassis's and got this. I used to race on road back in 2007 and really enjoyed it. A major plus is no dirty car to clean. I'll post pics as soon as I start my build. Cheers

What batteries and esc do they use in the tamiya TCS spec/novice class??? I'm waiting to get those items until I find out what is the most popular used in that class. I really want to use lipo batteries but don't know again what is used in that class. Thanks for the advice.

https://www.tamiyausa.com/tcs/rules/

Look what showed up on my doorstep today via FedEx!!!! I'm just waiting on the body and a few more upgrade parts then I will put it together. I will post pics along the way. This is my first tamiya kit in like 35 years. My first two rc cars were an original tamiya super champ and blackfoot. This kit brings back so many great memories. A time when rc cars were much simpler and a blast to drive. I'm crossing over from the competitive world of 1/8 e buggy were it's all about racing and winning first and enjoyment second. Time to relax and have some fun now.

I'm in a similar situation. My first RC was a Tamiya Grasshopper in 1986. I remember I was expecting the build to take me a month or so but I had it done on the first day. I didn't know of any tracks around me and the novelty of driving it around in a parking lot quickly wore off so I didn't pursue RC any further. I'm now in the middle of building a TT-02 '99 Monte Carlo Subaru. The only mod I'm starting with is some oil filled shocks. I suspect that the steering mod is going to be a must have but I'm going to try it stock first.

I can't qoute yet, but to answer jamsandolina's question: If you're looking for the steering post for the aluminium steering set then I think it's Tamiya 3454760. Since it's the same one used on the trf419x, I think you could also use Tamiya 13450752. This one has a hex shaped bottom which makes it easier to remove.

Hello..what servo do you guys recommend for racing the TT02 in club racing??? I'm looking at two different Hobbystar lv servos. One is 109oz/.09 and the other is 139oz/.11 both of those numbers are at 4.8v because the Hobbywing wp 1060 ESC runs at 5v. I confirmed through Hobbywing USA. I have an off-road racing background. So my guess is with the smaller tires speed is more important than massive holding power. Thanks

Yes you need speed in the servo .. not high torque