Ball diff. vs gear diff.

[stamatis]

I would like your opinion which would be better to use with a powerful motor in a M05.

I know the advantages of ball diff concerning cornering etc but will both last long and be ok with the extra power and which needs less maintenance?

Thanks,

Stamatis

[mb_c11]

I would like your opinion which would be better to use with a powerful motor in a M05.

I know the advantages of ball diff concerning cornering etc but will both last long and be ok with the extra power and which needs less maintenance?

Thanks,

Stamatis

Gear diff will last longer and need less maintenance, but handling will likely be better with the ball diff.

[Butler]

The TA03 diff is stronger enough for anything you can put in a M05. The stress is low on these cars, because the torque gets lost in wheel spin.

I built my TA03 diff about 3 years ago, tight with anti-wear grease. Its ran for 6months with a 23T motor, then for about a year with 4300kV brushless, now I am back to a silver can for race rules. The diff is still tight and smooth after 3 years with no maintenance.

Thanks

[TenzoR]

Gear diff + 300,000WT diff oil is very nice and smooth. Smoother than any ball diff. But it's still leaks after a while.

For maintenance free, go wit the TA03 Ball Diff + Harden Diff Joint. They will last a long time before replacement or rebuild.

[Butler]

Ah yes, I forgot to mention, after about a year I fitted the hardened cup joints.

[stamatis]

Thanks guys...

Is there any difference between the M05 #54193 ball diff and the TA03 one or they are about the same concerning durability etc?

Stamatis

[Butler]

I think the new M05 ball diff, needs some TRF hop up parts to make it durable. I think its technically better, but the TA03 is more of a fit and forget solution.

Its discussed on the rctech.net site. I'll see if I can find it.

[Butler]

Diff screw :- 51431

Diff nut :-51341

Thrust bearing :- 9949000

[stamatis]

Many thanks for searhing it...

But what part is #9949000???

And the #51431 is the Honda Civic Body set!

Stam.

[Butler]

Looks like the screw and the nut come together, so just 51341

Think the other item should be 9949300.

Ta,

[stamatis]

Much better, that makes sence..

[digitrc]

The M-05 diff will only cause problems if you either lack experience in building ball diffs or try and run it far too tight.

For "normal" settings it will cause no problems right out of the pack. You just need to take care with the build, because it is properly adjustable (unlike the TA03 diff which is not intended to be adjusted).

[stamatis]

The M-05 diff will only cause problems if you either lack experience in building ball diffs.

Hmm, could you become more specific?

I mean what should I have in mind while building it?

Any tricky steps while building it?

[digitrc]

Hmm, could you become more specific?

I mean what should I have in mind while building it?

Any tricky steps while building it?

They need careful lubrication (a little silicone grease on the main balls, a lot of black grease on the thrust) and careful tightening (hand tight and back 1/8th of a turn to start with). Because of this many people have problems the first few times they build a ball diff, it is something that only experience can really teach, you need to get the "feel" for when they are adjusted properly.

[TenzoR]

I don't really like the Aluminum diff halves used by Tamiya. They are extremely soft even when used with the shaft protector they will still show wear. I changed mine to the M05Ra reinforced steel diff halves and used the TRF201 diff screw + nut and the TRF201 thrust bearing set.

[mb_c11]

The M-05 diff will only cause problems if you either lack experience in building ball diffs or try and run it far too tight.

For "normal" settings it will cause no problems right out of the pack. You just need to take care with the build, because it is properly adjustable (unlike the TA03 diff which is not intended to be adjusted).

The TA03 diff is also adjustable. That's why there's 5 spring washers inside of it. Just be sure to replace the ****ty plastic thrust bearing by a one-piece version.