Now I have another question

Standard TT02 comes with GB1 diff case
TT02-RR comes with GB2 diff case where gear diff oil is possible.

Outdrive cup for GB1 & GB2 are different.

Now, if I want to lock the front diff, Tamiya 54649 TT-02 Diff Lock Block can be used in GB1 or GB2 diff case???

You can use that option, or you can throw some epoxy into the diff case and let it set. That’s what I did on my sons car.. has held up very well.

What alu servo mount is recommended???
RM01 or TB-03???

Same time just found out Tamiya 54977 TT-02 Aluminum Servo Mount will be coming soon..

I think the TB03 one is similar to the TA05 servo mount which I use. Doesn't really matter, servo mounts are one of those generic parts that work on lots of cars

There are 2 servo mounts for TB-03, left & right & I do not understand why the difference

http://www.tamiya.com/english/products/54091/index.htm

http://www.tamiya.com/english/products/54090/index.htm

The inner (or left) servo mount is located below the prop shaft, so it needs to have a lower height than the right one.
You also have to cut away the half of left
​​​servo mounting flange to clear the prop shaft. Kind of weird...
Michael

Hi... Michael,

Thanks.

Just picked up one of these, a Mustang GT4. Haven't raced RC in 20 years, but needed some at-home stress relief and this fit the bill.

I'm never going to race this thing, but I added bearings and oil dampers because plastic bushings and Tyco friction "shocks" just hurt me on any car that looks this good.

Only other upgrade I plan on are tires. Kit slicks are slippery and I can tell they're going to wear fast too. What tires would you all recommend for parking lot bashing? HPI X pattern radials seem to be gone, I see a ton of no-name knock off brands (no idea if there are hidden gems buried in these), and Tamiya options seem OOS or hard to get everywhere. I'm looking to stick with 26mm width, to use the kit wheels.

There is a set of 4 tires with inserts from Ride RC:
Ride 26mm
I did not use them up to now, but I think they are worth testing.

Anybody know what part # I need to use these metal diffs in a TT-02? The plastic diff housing (outdrive cup?) that comes with the kit has four holes so it doesn't fit. I've got all the other internal and prop shaft gears I just need the diff housing.

If you live in the US, you can get them pre-mounted from Gravity RC for $25 a set:

https://www.teamgravityrc.com/home/USGT-TIRES-c37393544

Repost

Im not sure if either of those fit properly but it looks like Tamiya are releasing a TT02 specific aluminum servo mount (54977) so it might be worth waiting for

In the official Tamiya hop up parts catalog for TT-02 chassis Servo mount 54090 is listed for use. 54090 is right hand Aluminum servo stay of TB-03.

Are they from the DF02 buggies? They look like it. I use them in my TT02B and just needed the diff housing from the DF02 and the outdrives, dogbones etc all worked fine with them. I just had to file down the diff pinion gear which was easy to do. Its a really common upgrade for the TT02B with brushless motors.

I don't know the part numbers without searching, but the Gravel Hound and Plasma Edge were models on the DF02 chassis.