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Old 11-18-2014, 06:46 PM   #5896
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The diff has been spun around in the '15 and will sit in the same position in what ever configuration you decide to use. The new diff position is accommodating for the use of a shorty pack.

edit ----- The centre diff does get spur around when you convert to a shorty. My mistake


You may be able to fit a '15 centre diff in the '14 car if you can find someone to machine you up a new (364020) COMPOSITE CLUTCH SHAFT HOLDER.

It may work, all depends on the length of the "15 slipper assembly.
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Last edited by Boz; 11-19-2014 at 01:03 AM.
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Old 11-18-2014, 07:51 PM   #5897
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Thanks guys for all the input . I will be ordering a handful of parts along with all that was suggested .

I am just curious to know what springs are you guys running in terms of brand ? You guys all using Xray or AE,LOSI etc etc .. I have a lot of Associated springs I'm hoping I can use

Any input would be great

Thanks again
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Old 11-18-2014, 08:50 PM   #5898
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Quote:
Originally Posted by Boz View Post
The diff has been spun around in the '15 and will sit in the same position in what ever configuration you decide to use. The new diff position is accommodating for the use of a shorty pack.

You may be able to fit a '15 centre diff in the '14 car if you can find someone to machine you up a new (364020) COMPOSITE CLUTCH SHAFT HOLDER.

It may work, all depends on the length of the "15 slipper assembly.
Thanks Boz, yes, that was Savoya's 2014 XB4 - I thought that was obvious as well. Anyhow, the 2015 slipper assembly is much shorter than the 2014/2013 slipper assembly, hence the new longer centre front cvd and much shorter rear cvd (64mm) in the 2015 kit. I "think" that the 2015 centre/rear diff housing (364022) might fit in the 2014 with some chassis modification like Savoya's above. Again this is all guesswork at the moment and if you added in metal bevel and pinion gears you might have an expensive project only to find out for another $250 a new kit is in your hands.
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Old 11-18-2014, 09:30 PM   #5899
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centre driveshaft on the '14
88mm + 88mm = 176mm
centre driveshafts on the '15
64mm + 116mm = 180mm

The specs off of the Xray website say the dimension of the two chassis are the same. So the '15 diff maybe 4mm shorter in length or the dogbones are now seated deeper into the drive cups.


Yes, time will tell.
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Old 11-18-2014, 09:42 PM   #5900
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I just looked at it the new centre slipper mounts again.

The bearings on the new slipper and diff are in a different position.
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Old 11-18-2014, 09:52 PM   #5901
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Quote:
Originally Posted by yunowill View Post
Thanks guys for all the input . I will be ordering a handful of parts along with all that was suggested .

I am just curious to know what springs are you guys running in terms of brand ? You guys all using Xray or AE,LOSI etc etc .. I have a lot of Associated springs I'm hoping I can use

Any input would be great

Thanks again
Most near me utilize kyosho springs. I've tried losi and ae springs. The kyosho springs just seem smoother. With saying that you can likely get close depending on which ae rates you have.
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Old 11-18-2014, 11:20 PM   #5902
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Quote:
Originally Posted by yunowill View Post
Thanks guys for all the input . I will be ordering a handful of parts along with all that was suggested .

I am just curious to know what springs are you guys running in terms of brand ? You guys all using Xray or AE,LOSI etc etc .. I have a lot of Associated springs I'm hoping I can use

Any input would be great

Thanks again
I used AE ones on mine, orange or purple on the front, grey on the rear, but that's on UK Astro/grass tracks so probably no help to you at all
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Old 11-19-2014, 08:42 AM   #5903
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Quote:
Originally Posted by Boz View Post
Are you sure the '15 are different to the '14 ones?
Now, that is a good question indeed. The part numbers in the manual looks like the old numbers, but that's not really anything to go by. If we see here, it's listed as a new and updated part:

http://www.teamxray.com/xb4/

And visually, I think the ones in the '15 box looks just a wee bit more beefy compared to the '14 ones.
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Old 11-19-2014, 10:16 AM   #5904
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So my 2014 XB4 needs to have the diffs refreshed after a year of racing, looking at the cost to refresh all the parts including the out-drives I'm leaning toward just trying the ball diffs for roughly the same price. Anyone have experience with the ball diffs? Are they rebuildable. Can the parts be bought separately?
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Old 11-19-2014, 11:01 AM   #5905
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Xray Racing Cars
All-new XB4’15 shipping now

Good news for everyone. The All-new XB4’15 has been already shipping to all distributors. It will take some short time until the kits will get available in your local hobby shop. Make sure to pre-order yours, the first supply will be limited.


https://www.facebook.com/TeamXray/ph...type=1&fref=nf
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Old 11-19-2014, 11:05 AM   #5906
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EricW-

I read through a lot of the XB4 2wd thread and guys that were using them there seemed to have problems getting them set right, if I remember correctly.
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Old 11-19-2014, 01:52 PM   #5907
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Quote:
Originally Posted by EricW View Post
So my 2014 XB4 needs to have the diffs refreshed after a year of racing, looking at the cost to refresh all the parts including the out-drives I'm leaning toward just trying the ball diffs for roughly the same price. Anyone have experience with the ball diffs? Are they rebuildable. Can the parts be bought separately?
Yes they are rebuildable, all parts can be bought separately. I would recommend using carbide balls instead of the ceramic that is included, since the tuning window of the ceramic is really small.

We have been running the ball diff a lot in the 2wd, and it works great, but it does take a beating, so I would think twice before using it in the 4wd with the extra power you are putting down with that car. I would recommend upgrading to the 2015 diff setup instead with the steel gears. The out drives look slightly beefier as well. We tried the '15 car for the first time tonight and it worked a charm straight out of the box.
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Old 11-19-2014, 02:54 PM   #5908
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Yes they are rebuildable, all parts can be bought separately. I would recommend using carbide balls instead of the ceramic that is included, since the tuning window of the ceramic is really small.

We have been running the ball diff a lot in the 2wd, and it works great, but it does take a beating, so I would think twice before using it in the 4wd with the extra power you are putting down with that car. I would recommend upgrading to the 2015 diff setup instead with the steel gears. The out drives look slightly beefier as well. We tried the '15 car for the first time tonight and it worked a charm straight out of the box.
Did you run shorty or saddle? Got mine sat ready to build shorty I think. Keeping the '14 for saddle duties if needed. Can't wait to get this thing built and raced.
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Old 11-19-2014, 03:11 PM   #5909
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Did you run shorty or saddle? Got mine sat ready to build shorty I think. Keeping the '14 for saddle duties if needed. Can't wait to get this thing built and raced.
We ran shorty, on an indoor carpet track. The biggest difference with this setup was that it was much easier putting the power down going out of turns and I had to tune in some steering into the setup.
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Old 11-20-2014, 09:13 AM   #5910
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Am I correct that it hasn't been established the metal gear diff from the '15 will work in the '14 or has that been confirmed that it will?
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