HPI baja 5t which rear dog bones?

[Clubin]

Uber ball drive 4.2
https://www.ddmracing.com/UberRC-v4-2-HD-Ball-Drive-System-6206

Or

Phat dad
https://www.ddmracing.com/PhatDad-R...ogbones-and-Drive-Cups-for-HPI-Baja-5B-5T-5SC

They are the same price i
Have a way older version of the phat dad dog bones. With no issues.

Thoughts?

I’m building another baja 5t with a stock 32.

 

[MonsterAir]

Those ball drives look sweet if they can handle the power and be durable. @John Parks should know...

 

[Clubin]

I had ball drives on my fg many years ago never had any issues with them.

 

[John Parks]

Uber ball drive 4.2
https://www.ddmracing.com/UberRC-v4-2-HD-Ball-Drive-System-6206

Or

Phat dad
https://www.ddmracing.com/PhatDad-R...ogbones-and-Drive-Cups-for-HPI-Baja-5B-5T-5SC

They are the same price i
Have a way older version of the phat dad dog bones. With no issues.

Thoughts?

I’m building another baja 5t with a stock 32.

I'd go IRC or alx personally. Irc have enclosed pins so no need for set screws etc I believe the alx ones are setup the same way. The irc and alx setups are cheaper than both the uber or phatdad setups also and much stronger


Uber from my experiences in past were all junk, and many others as well. However crucial has had good luck so far with them.

Phatdad are strong but the pins can come out, and the grub screws strip easily because they are so small.

 

[spents]

if you use uber ball drives always fit a set of the reinforcement rings as well ,
if you don't then the cups can split if using higher power engines,

https://www.ddmracing.com/HD-Ball-Drive-Reinforcement-Ring-Set-for-Baja

 

[Clubin]

I'd go IRC or alx personally. Irc have enclosed pins so no need for set screws etc I believe the alx ones are setup the same way. The irc and alx setups are cheaper than both the uber or phatdad setups also and much stronger


Uber from my experiences in past were all junk, and many others as well. However crucial has had good luck so far with them.

Phatdad are strong but the pins can come out, and the grub screws strip easily because they are so small.

Set of irc ordered. Thank you Detroit performance. And a bunch of other things I wanted. They do look like the best. Thanks!

if you use uber ball drives always fit a set of the reinforcement rings as well ,
if you don't then the cups can split if using higher power engines,

https://www.ddmracing.com/HD-Ball-Drive-Reinforcement-Ring-Set-for-Baja

Seems crazy to spend that much then have to spend more so they don’t brake. Lol.

 

[crucialRC]

I run them with no issues on my drag baja with Bartolone 34 drag mod engine. MCD even uses ball drives capable of handling the biggest big bores. Just keep em booted and lubed

 

[spents]

Set of irc ordered. Thank you Detroit performance. And a bunch of other things I wanted. They do look like the best. Thanks!

Seems crazy to spend that much then have to spend more so they don’t brake. Lol.

yeh there were some issues with the uber ball drives clubin,,
the balll drives first came out before big bore and twin engines were really out there,
there was only stock engines and the original rcmax plus the scotty finlay as well,
everyone was using the stock 23 and 26cc and then upto a 30.5cc, then the g320 came out and some breakage /wear issues started with the cups
if you scroll down the link below you will see the ''disclaimer/amendment to ubers lifetime warranty stating the strengthener rings need to fitted for warranty claims when using engines above a stock 26cc ,

https://www.uberrc.com/product-page/baja-hd-ball-drive-system-v5

 

[Clubin]

yeh there were some issues with the uber ball drives clubin,,
the balll drives first came out before big bore and twin engines were really out there,
there was only stock engines and the original rcmax plus the scotty finlay as well,
everyone was using the stock 23 and 26cc and then upto a 30.5cc, then the g320 came out and some breakage /wear issues started with the cups
if you scroll down the link below you will see the ''disclaimer/amendment to ubers lifetime warranty stating the strengthener rings need to fitted for warranty claims when using engines above a stock 26cc ,

https://www.uberrc.com/product-page/baja-hd-ball-drive-system-v5

Quite the wty disclaimer.

 

[spents]

Quite the wty disclaimer.

yeh just a small disclaimer clubin

 

[Clubin]

Got a vertigo locker too.
But was kind of thinking I should get the Taylor locker for the irc bones. In the pic it looks like the cross pins will fall out. The pins aren’t held in. Or is just a generic pic?
The irc dog bones are huge!

https://www.detroitperformancerc.co...ltimate-baja-locker-diff-removal-kit-for-baja
Notice in the pics? Am I missing something?

 

[spents]

the pins are threaded at one end clubin, all the pins do is locate the outdrives and hold em in position,
the stress is taken by the 1/2" hex thats built in ,

 

[John Parks]

What spents said, one end is machined small so pin can't come out, other end is threaded and uses a grub screw to lock pin in.

 

[Clubin]

Sorry boys. The dog bone cross pins.
Pic of irc inner cup notice no openings. I suspect a variant of this is what comes with the Taylor locker and the pics are incorrect.

 

[John Parks]

Sorry boys. The dog bone cross pins.
Pic of irc inner cup notice no openings. I suspect a variant of this is what comes with the Taylor locker and the pics are incorrect.

Ah OK, yea the new cups come enclosed. His website still has the v1 style pictured

 

[Clubin]

Ah OK, yea the new cups come enclosed. His website still has the v1 style pictured

Thanks.

 

[Clubin]

These are hpi 5b/t boots. No way they will fit. Apparently boots from a 5SC fit but I can’t find any. What are you running? Links?
Sorry these are the uhd innovative dog bones.

 

[John Parks]

These are hpi 5b/t boots. No way they will fit. Apparently boots from a 5SC fit but I can’t find any. What are you running? Links? View attachment 83687View attachment 83688
Sorry these are the uhd innovative dog bones.

I personally wouldn't run boots.