HUB SHIMS and options with axles/diffcups ?

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phreerider

phreerider

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this post got lost in the mix and wanted to rerun it as it has some questions and experiences seeming an improvement not sure if if has been discussed before esp. the dogbone choices... but the axles shimm thing i wanted to pass on.....


i just completed the alloy hubs all the way around with stock bearing size. really tightened things up, the front esp. the timing on the hex adapters and the set screw(2) alignment engages the axle race nicely, takes out 90%+ of the play. the rear is a fraction different there ..i added .7mm shimm between the hex and the bearing axle race...right on the money with set screw combo timed perfect and zero'd all the play.


which brings me to some questions


-the front axle/cv joint/dogbone. this is sold as one piece? specific name for ordering or are they seperate ?


are all the diff cups the same ,center, diff in /out?? they seem the same.


anyway, definitely seems a fraction difference on the front axles and the rear axles for race engagement on the threaded adapters for tightness and exact set screw(2) coincidence.


the steering is so much more snappy and smooth without any slop through the hubs, and the backend has no wobble on the hubs at all with the shimms in place.


NOW hubs are super stable and smooth, everything is nice and tight.
 
thanks, can the front CV/dogbone go either front or rear? seems as though they go either way.

and the shimm thing on the rear?...huge improvement in the wheel wobble thing, eliminated it completely...if not already noted to XB improvements it should be. on the front axle the upgrade metal hub bearing holder for the axle and the hex adapters have perfect combo...hence the difference i noticed about the AXLES front to rear. the front just have tighter tolerances. so if you ran cv combos on the rear you wouldn't need shimms(with the metal hubs). dad you got wisdom on this?
 
Yes the CVD & dogbones are interchangeable. However the factory CVDs tend to be a bit weaker. A lot of folks actually run dogbones on all four. There are some aftermarket CVDs by FLM that are much better.
 
thanks for intel. the front cv does seems a bit fragile, but so far so good. may change to make front a dogbone set up for parts simplification.
 
update on bearing duty cycle...

the stock hub bearings are still hanging in there on the front, the rear are nearing their last couple of sessions the wheel wobble and "sway" through cornering pretty hard to deny!

so anyway about 100hours(run time) and the rear bearings have had it! this is bash/ tow roughly 30/70. and dry, NO wet conditions. with tedious maintenance. a grease repack at 50hour mark may have given more time but hardly worth the effort. the mechanics favor early failure for rear and thats obvious.

the front are definitely still solid , maybe they'll do 200hrs.

making it fresh again??..

first round will be stock SS bearings all the way around and the rear eventually going to 7075rc oversize bearing hub carriers, simple size/load issue and bigger has to be better.

plus adding 7075rc Alloy diff boxes and shock towers, should be fun!
 
need abit more clarification on FLM stuff ..

i see the "XB" and looks like the ticket...what is the RXB? and what why are the rears different. heres the page with the choices http://www.fastlanemachine.net/products.php?cat=Redcat+XB

i see the "MT" (XB page? right) and clearly not what i want .

am i missing something ...again, wouldn't front and rears be the same ? and theres a $ difference. Just not sure what the other options are for and they are definitely different .. ???
 
I don't think the "R" is for rears. If you look at the two pics you will notice the two axle thread sixes. The older X-series came with 6mm and the current is 10mm.

sled.gif
 
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