Tamiya TB-03
#2313
Tech Adept
#2314
Tech Addict

Hi I all,
I just picked up a very nice TB03 from eBay. It's almost specd to a tb03R. I got a good deal on it and am really looking forward to running it alongside with my other Tamiya chassis TA05v1 and Xv-01.
From what I read, it sounds like it's possible to use a rear carbon damper stay from the tb04. Right now the chassis has a carbon Ta03 stay, but it has very wide mounting positions for the posts. I don't feel like putting another set of holes in my 3 lexan bodies since they all get swapped around between my chassis.
The question is, does the tb04 carbon damper stay fit, and secondly, is the mounting position narrower, like the rear of a ta05?
Also I was looking to replace the front spool with a gear diff. I really enjoy the fact that this car came with a spool, a front one way, and a drive shaft one way. All this racing stuff for me to exploit. But there is something about a front diff that really changes the a driving and turning characteristics.
Does anyone have the correct part numbers to piece together a gear diff from the tb04?
So far I have put together:
#51549 - diff case, bevel gears
#51554 - cup joints (steel?)
#51553 - gasket (and 850 bushings?)
Is this all I need or am I missing something?
I primarily drive my cars on the street and I love the feel and low maintenance of a high CST front gear diff. The spool just seems to scrub my wheels.
Anyway, I hope to set my car up for street TC and maybe some light street rally.
I just picked up a very nice TB03 from eBay. It's almost specd to a tb03R. I got a good deal on it and am really looking forward to running it alongside with my other Tamiya chassis TA05v1 and Xv-01.
From what I read, it sounds like it's possible to use a rear carbon damper stay from the tb04. Right now the chassis has a carbon Ta03 stay, but it has very wide mounting positions for the posts. I don't feel like putting another set of holes in my 3 lexan bodies since they all get swapped around between my chassis.
The question is, does the tb04 carbon damper stay fit, and secondly, is the mounting position narrower, like the rear of a ta05?
Also I was looking to replace the front spool with a gear diff. I really enjoy the fact that this car came with a spool, a front one way, and a drive shaft one way. All this racing stuff for me to exploit. But there is something about a front diff that really changes the a driving and turning characteristics.
Does anyone have the correct part numbers to piece together a gear diff from the tb04?
So far I have put together:
#51549 - diff case, bevel gears
#51554 - cup joints (steel?)
#51553 - gasket (and 850 bushings?)
Is this all I need or am I missing something?
I primarily drive my cars on the street and I love the feel and low maintenance of a high CST front gear diff. The spool just seems to scrub my wheels.
Anyway, I hope to set my car up for street TC and maybe some light street rally.
#2315

Hi I all,
I just picked up a very nice TB03 from eBay. It's almost specd to a tb03R. I got a good deal on it and am really looking forward to running it alongside with my other Tamiya chassis TA05v1 and Xv-01.
From what I read, it sounds like it's possible to use a rear carbon damper stay from the tb04. Right now the chassis has a carbon Ta03 stay, but it has very wide mounting positions for the posts. I don't feel like putting another set of holes in my 3 lexan bodies since they all get swapped around between my chassis.
The question is, does the tb04 carbon damper stay fit, and secondly, is the mounting position narrower, like the rear of a ta05?
Also I was looking to replace the front spool with a gear diff. I really enjoy the fact that this car came with a spool, a front one way, and a drive shaft one way. All this racing stuff for me to exploit. But there is something about a front diff that really changes the a driving and turning characteristics.
Does anyone have the correct part numbers to piece together a gear diff from the tb04?
So far I have put together:
#51549 - diff case, bevel gears
#51554 - cup joints (steel?)
#51553 - gasket (and 850 bushings?)
Is this all I need or am I missing something?
I primarily drive my cars on the street and I love the feel and low maintenance of a high CST front gear diff. The spool just seems to scrub my wheels.
Anyway, I hope to set my car up for street TC and maybe some light street rally.
I just picked up a very nice TB03 from eBay. It's almost specd to a tb03R. I got a good deal on it and am really looking forward to running it alongside with my other Tamiya chassis TA05v1 and Xv-01.
From what I read, it sounds like it's possible to use a rear carbon damper stay from the tb04. Right now the chassis has a carbon Ta03 stay, but it has very wide mounting positions for the posts. I don't feel like putting another set of holes in my 3 lexan bodies since they all get swapped around between my chassis.
The question is, does the tb04 carbon damper stay fit, and secondly, is the mounting position narrower, like the rear of a ta05?
Also I was looking to replace the front spool with a gear diff. I really enjoy the fact that this car came with a spool, a front one way, and a drive shaft one way. All this racing stuff for me to exploit. But there is something about a front diff that really changes the a driving and turning characteristics.
Does anyone have the correct part numbers to piece together a gear diff from the tb04?
So far I have put together:
#51549 - diff case, bevel gears
#51554 - cup joints (steel?)
#51553 - gasket (and 850 bushings?)
Is this all I need or am I missing something?
I primarily drive my cars on the street and I love the feel and low maintenance of a high CST front gear diff. The spool just seems to scrub my wheels.
Anyway, I hope to set my car up for street TC and maybe some light street rally.

#2316
Tech Addict
#2318
Tech Addict

TB03 cut up and running 74mm tires. My first shaft driven 4wd chassis.
Cuts were made to the chassis to allow the steering links to clear the extra rally droop. I also cut off the over hanging IFS bracing as it was interfering with the larger tires.
Front maximum height with 24mm Tamiya slicks is 22mm, rear is more. Chatter is gone because I went back to using the original arms but shaved down the constricting arms at the hub carriers.
I know, I need some better cable management.
Motor is a HobbyWing 13.5, with HW stock spec 100amp ESC. Servo is Futaba digital.
The front is running a spool that came with the car, and I hate it, it scrubs hard. A front gear diff pieced together will cost about 1/3 of what I payed for the car. So I will deal with it for now. All in all it drives very well on the street. Dive and roll are awesome. Not as predictable as a ta05 but a little better than the xv-01. Right now it's set with 72/35 gearing in 0degree blinky. It only gets faster when I enable turbo!
Cuts were made to the chassis to allow the steering links to clear the extra rally droop. I also cut off the over hanging IFS bracing as it was interfering with the larger tires.
Front maximum height with 24mm Tamiya slicks is 22mm, rear is more. Chatter is gone because I went back to using the original arms but shaved down the constricting arms at the hub carriers.
I know, I need some better cable management.
Motor is a HobbyWing 13.5, with HW stock spec 100amp ESC. Servo is Futaba digital.
The front is running a spool that came with the car, and I hate it, it scrubs hard. A front gear diff pieced together will cost about 1/3 of what I payed for the car. So I will deal with it for now. All in all it drives very well on the street. Dive and roll are awesome. Not as predictable as a ta05 but a little better than the xv-01. Right now it's set with 72/35 gearing in 0degree blinky. It only gets faster when I enable turbo!

#2319
Tech Addict

Hi all,
Why is the spool so much wider than the diff and one way? What CVD length would I need for using non-spool? 46mm?
Why is the spool so much wider than the diff and one way? What CVD length would I need for using non-spool? 46mm?
#2321
Tech Addict


It looks like the spool and one way I got with my car had different widths. I picked up some diffs and another one way and spool for a tb04. You can see the width of the one way drive inserts vary. The 44mm CVD is correct, but if you have narrow drive inserts you need 46mm.
I ended up using the gear diff in the front and a ball diff in the rear the car rotates very well now.
Last edited by 4roller; 08-29-2017 at 10:31 PM.
#2322
Tech Rookie

Someone know where I can find the alu steering set #54095?
#2324
Tech Regular

Bulkheads and diffs fit from tb04/05, suspension from TRF416 is used on varety of Tamiya cars, basically only TB03 specific part is chassis, steering, motor mount and centre shaft.
#2325
Tech Adept

Hi guys,
sorry for grave digging but I wanted to share some pictures of my recently updated and finished TB-03 with you.
Some weeks ago I have decided to do a kind of "Box Art Car" out of my parking lot racer TB03. I was stuck the some of the original TB-03R pictures, which can be found online and tried to use as many contemporary Tamiya parts (TEU-302 BK for example) or recent replacements with similar appearance (TRU-08) as possible. I'm nort sure about the "Lightly Tuned Motor", but colorwise it fits neatly in the overall picture.
I would have loved to add one of the old Tamiya NiMH 3700mAh battery packs (part number 55094), but sadly, i wasn't able to find one of these.
I have updated the car with TB04 gear diffs, both are equipped with the steel bevel gears and cross shafts, the front unit is further updated with Aluminium cup joints. I also replaced the stock dogbones shafts with universal ones, 42mm front and 44mm ones in the rear.
Other nice blue updates can be seen in the pictures.
The result:




Some more pictures can be found in my TB-03 album.
I'm curious what you think of my "TB03 pro" :-)
Regards,
Michael
sorry for grave digging but I wanted to share some pictures of my recently updated and finished TB-03 with you.
Some weeks ago I have decided to do a kind of "Box Art Car" out of my parking lot racer TB03. I was stuck the some of the original TB-03R pictures, which can be found online and tried to use as many contemporary Tamiya parts (TEU-302 BK for example) or recent replacements with similar appearance (TRU-08) as possible. I'm nort sure about the "Lightly Tuned Motor", but colorwise it fits neatly in the overall picture.
I would have loved to add one of the old Tamiya NiMH 3700mAh battery packs (part number 55094), but sadly, i wasn't able to find one of these.
I have updated the car with TB04 gear diffs, both are equipped with the steel bevel gears and cross shafts, the front unit is further updated with Aluminium cup joints. I also replaced the stock dogbones shafts with universal ones, 42mm front and 44mm ones in the rear.
Other nice blue updates can be seen in the pictures.

The result:




Some more pictures can be found in my TB-03 album.
I'm curious what you think of my "TB03 pro" :-)
Regards,
Michael