AR60 axle truss/link mount not centered

[TacoCrawler]

edit: 3/21/16 see post #25 for my temporary resolve

So I've ran across a few threads discussing this
and even a mention that the Wraith chassis/cage is not centered.

I did not use the stock plastic cage so don't know that to be fact.

But I do know that my AR60 axle is somewhat offset
towards the passenger side. (tire protrudes 3/16" - 1/4" more)

so is this normal ?

My custom made links are of equal lengths (uppers -lowers)

This dicussion is what confused me farther...

Wraith upper link mounts not centered on axle?


I've read that the VP AR60 truss/links are properly centered...
but not really wanting to invest $ to know for sure.

So... was this an Axial production issue...
that was possibly corrected ?
or was it engineered to be this way.
And getting a new Axial AR60 axle truss may still not be centered ?

If it makes any difference...
I purchased a new Wraith kit... possibly an older production kit.
but don't know for sure.

Anyone have a heads up or advice regarding how to shift
the axle slightly to the driver's side ?
^ besides the shortening or lengthening link lengths

[WHITE-TRASH]

I have a couple of the older trusses that offset the axle. I simply adjust one upper link a bit longer or shorter as needed to center it.

[TacoCrawler]

Originally Posted by WHITE-TRASH

I have a couple of the older trusses that offset the axle. I simply adjust one upper link a bit longer or shorter as needed to center it.

My links are purdy much fixed...
suppose I could lengthen one a tad.
But wouldn't that shift the axle to an angle that
finds the tires not centered in their wheel wells as I'd prefer ?

I realize the stock Wraith body has no defining wheel wells per say.

But the custom TJ build I have does have wheel well openings.
And that alignment is more critical.

I tried calling Axial today to find out more...
but the tech that answered doesn't know squat
So basically will have to call back next week.

I'm thinking about shifting the upper link's ball ends
on the truss mounting ears towards the passenger side
to see if that will net some axle shift ?

any other ideas besides messing with link lengths ?
Purdy sure the factory Wraith links are of equal length out the box.

^ when you reference older trusses...
does that mean there are newly designed AR60 trusses/centered link mounts ?

[WHITE-TRASH]

Early on the trusses were made with the upper link mounts offset for whatever reason. They corrected that faux pas in the later pieces.

The amount of length difference is minimal. On my rig with the old truss one links is only about 1/8" longer to correct the offset so the wheel well centering (if I had a body on it) wouldn't be affected enough to notice.

[TacoCrawler]

Originally Posted by WHITE-TRASH

Early on the trusses were made with the upper link mounts offset for whatever reason. They corrected that faux pas in the later pieces.

I'll be discussing this with Axial next week.
If there's a newer truss/link mount... I want it.

Originally Posted by WHITE-TRASH

The amount of length difference is minimal. On my rig with the old truss one links is only about 1/8" longer to correct the offset so the wheel well centering (if I had a body on it) wouldn't be affected enough to notice.

I compensate slightly with the mounting of my body onto the chassis currently.
But the axle is still shifted too far to the passenger side.

I don't really want to mess with link length...
nor the chance that the axle might be slightly off angle
(not square to the chassis)

If the new truss/link does not correct this issue...
then I'll try offsetting the upper link ball ends towards the axle's passenger side
to see if that offset change shifts the axle more towards the driver's side.

Purdy dang sure my chassis is squared properly...
but the truss/link mount isn't centered to the axle.

oddly... seems more noticeable at the rear, then the front ? hmmm

thanks for sharing your thoughts on the matter

[TacoCrawler]

Anyone have any more information
regarding the centering of the Truss/Link mount
on the off set AR60 axles ?

I read that the VP truss corrects this...
as well the Axial newer production truss.

But nobody has made any confirmation/clarification of this...
here nor anywhere that I see.

[kgb424]

Hey I just tried Mike Flea's suggestion too my questioning the upper links being centered

I mounted the upper links in the servo mount on the rear axle

The axle is still centered and would work for the rear axle, but what about the front axle

the only difference I notice is the angle on the drive shaft, my links need to longer too rotate the axle, like it is with the stock mount and angle is better

I took a couple new pics plus one old one

And answer too your question of my corrections it was you and Mike that noticed that I had the lower shock/link mount flipped and it cause every to shift off center when I attached the links

I flipped the shock/link mounts and that corrected off set problem and centered the axle and I used the same sized spacer for the shocks before one side was way off and needed 2 different spacer lengths

[TacoCrawler]

Originally Posted by kgb424

I flipped the shock/link mounts and that corrected off set problem and centered the axle and I used the same sized spacer for the shocks before one side was way off and needed 2 different spacer lengths

I'd like to avoid that mounting method...
because link articulation at the ball end may be restricted.
Seems popular in europe... but not for me.

[maslin]

The old "bad" mounts have the link mounts centered on the servo bosses. Only problem is that the servo bosses aren't centered on the axle.

The newer truss has the link mounts offset from the servo bosses, toward the left a bit. Someone had pictures...

[WHITE-TRASH]

Originally Posted by TacoCrawler

I'd like to avoid that mounting method...
because link articulation at the ball end may be restricted.
Seems popular in europe... but not for me.

It's popular here too, 2 of my rigs run the uppers on top like that in the rear for added vertical separation. With a properly setup suspension there is no binding or restrictions from that mounting.

I'm not trying to convince you to do things my way but knowledge is never a bad thing to have.

[TacoCrawler]

Originally Posted by WHITE-TRASH

I'm not trying to convince you to do things my way but knowledge is never a bad thing to have.

...true 'dat. no worries. any opionion is better then no opinion

don't fret... I'm rarely convinced of anything.
lest I acertain that the idea exceeds my own.

I forgot that the servo bosses were raised slightly...
so that the ball end might clear the truss better.

Tho' I would rather keep the upper links more triangulated/centered...
but it seems this way may be better then what is.

I guess it all depends on whether the prior trusses
were flawed and if the lastest Axial production run remedies that ?

others say ^ this is true... so I would want more clarification.
before doing something else.

ie: claim of older Vs. newer (but in need of substantiation)

Originally Posted by maslin

The old "bad" mounts have the link mounts centered on the servo bosses. Only problem is that the servo bosses aren't centered on the axle.

The newer truss has the link mounts offset from the servo bosses, toward the left a bit. Someone had pictures...

[kgb424]

OK in my pictures of my rear axle on my 1/6 scale build

which truss do I have old or new

I also have 2 Wraiths one was built as kit in an unopened box, the second Wraith was bought in pieces on Ebay and I built it, and now its my 1/6 scale build

there is maybe 6 to 8 months difference between the kit one and built parts one

So can you tell by looking at pictures which trusses they are cause I certainly can't tell the difference

the first one is the front of the 1/6 scale then the front and rear of the First Wraith I built

not sure if you tell from the pictures

[TacoCrawler]

^ don't see anything different in any of your pictures ?

am I supposed to ?

What exactly are you trying to illustrate here ?

[kgb424]

Its in response too #9 saying the link mounts are centered between the servo bosses,where the bad trusses

I can't tell the difference, just wondering if some else can

I bring up some points not stealing your thread

[TacoCrawler]

it's quite possible all of yours are from the earlier production run
Or possibly Axial's retooled production is folk lore/myth from the get go !?

[maslin]

You have to look from the other side, the smooth side. The only one have that I can get a picture of is old, the link mounts are centered on the bosses.

The new one has the link mounts moved over, one end is under the link boss.





Edit: just thought to check all the mounts I have. The 2 old mount came on my wraith, 2013 purchase. They are centered on the servo bosses.

The two trusses from my 2015 Bomber are offset, centered correctly on the axle. The link mount is moved over toward the differential side of the truss, the edge is even with that side servo boss.

[maslin]

Originally Posted by KraZeR169

Very interesting, so it looks like axial reworked the truss.

Yes, that's been known. The problem is they seem to come out in either flavor, as spare parts and on kits. There isn't a new part number to specify or anything, you just hope to get new ones I guess.

[TacoCrawler]

I have not found this mysterious truss...
google ignores muh search efforts
and I only see, what I'm guessing, is probably old stock photo's !?

-----------

anyways... Here's a cheap trick fix ('nother way)

I made attempt as to what I was thinking of doing prior...
and it worked out purdy well IMO !?

Positions the axle much closer to center.
maybe not perfection... but dang close.
The tires remain centered in the wheel well(s)

Was free, using what already exists *
* tho' it does require using a longer bolt then was original.

I'll likely revisit my effort
and beef it up a little by putting a spacer between the plastic ears
and a washer at the outside ball mount.
But I'll bet it holds up just fine to most regular use/abuses.


looking at the rear axle... ~ oddly my front axle mis-alignment isn't as noticeable ? weird ~




My TJ body is mounted as close to center on the chassis as it can be.
This method also aligned both shocks near equally, @ 90* /parallel to the chassis's rail surface.

~ I'll get a picture of the shock alignment tomorrow and add it here ~




Welp, maybe this will be helpful to someone...
there's no link adjustment required.
so I'll guess it's just a matter of how ya wanna slice yer cake


I'd still like to purchase a correctly centered truss/link mnt...
if that does in fact exist !?

~ hopefully monday's call to Axial confirms something ~

[WHITE-TRASH]

Just got home and my interest was piqued.

The lower truss is 78mm from center of the middle link mount tab to the edge of the splines on both sides. The upper truss is offset 3mm to the diff side. You can see the offset if you follow the holes in the truss and the line at the edge of the diff.

[STRAT]

I got a Poison spider 2 years ago rtr, checked my trusses and they are both centered, seems every one has a different set of these ones, is it still a problem with the new kits?