Just to see what diff balls,and Lube Most Like.And WHY. Just Not satisfied with what im using. Thanks

Ceramic diff balls and Finishline diff lube. Make sure your diff rings are sanded with 600 grit. The small etchings will give the diff grip without sacrificing the smoothness. DO NOT POLISH diff rings. Make sure your outside bearing in the hub is good. If a diff feels gritty that is the most likely cause of the problem


Good Luck, Rob @ Murdock R/C

go with ceramic balls. dosn't matter whoose but do like finish line diff lube

Ceramic balls are the best thing ever for your diff :D Ive just started using a new lube that has PTF in it very good stuff!

Niftech Rocket Rings and there dif lube, the lube is so good its almost like cheeting!!!
and you do NOT have to polish or sand the rings, just install. ORC ceramic diff balls.
NICK

personally i like steel diff balls.. i am not impresssed with thte ceramics yet.. i will say they halp a bad diff feel better, but i make some killer diffs... It is the one thing rc related, i can do better then anyone i know... My normal diffs with steel balls, last about 30+ runs before even thinking of a rebuild... but the ceramic ones i have been trying, need more maintinance.. maybe i got a bad set, but im pretty sure ill be going back to steel diff

I'd have have to agree with the ceramic diff balls I used to really have a hard time getting a GOOD feeling diff,new bearings or not just never felt as good as I thought it should,but since I went to ceramics they feel a TON better.

ceramic balls WILL outlast steel balls. period.

as for smoothness all available ceramic balls SHOULD be smoother than steel. usually the problem with smoothness when using ceramic balls is the diff rings. when you use steel balls, both the ball AND the ring can wear. however when you switch to ceramic balls ONLY the diff ring is going to be wearing. so if you're having problems with ceramic balls its more than likely your diff ring.

that said lube and outer bearing are typically much more important than the balls / rings, provided that the balls/rings are in good shape.

another thing to look at is whether you're overtightening your diff. the pressure required varies with lube used, but its very easy to overtighten your diff and waste on outer bearing, even if its ceramic.


finally, everyone should use an outer thrust bearing. with it your diff will be smoothe and only needs serviced to add more lube, and occasionally to sand the rings (if you're using ceramic balls). its really just plain STUPID that pan cars moved away from the thrust bearing. i doubt anyone is gonna argue that the vast majority of diff problems are related to the outer bearing not being "smoothe" because it gets so side loaded its ridiculous. if you use a thrust bearing the outer bearing no longer sees any load and your diff will work SO much better.

In all the diffs that I build (usually Lauren, Rick and Myself) I use Finishine diff balls and "The DIFFERENCE" Finishline diff lube. Also for your bearings try the Blue Lightning bearing oil and you can also get bearings from Finishline.

As far as ceramic to stainless steel balls, I have used both and there isent that big of a difference. And the stainless steel balls are cheaper.

When building your diff make sure to do a figure eight with an old hub (just to make sure all sides are sanded equal and its easier) on a piece of 600+ grit sandpaper untill the circle on the ring is gone.

Try a PRS spur gear and pinnion to go with that also!

Adam Liehr :dude:

KSG Motorsports
BSR Racing Tires
KC Racing motors and batteries
Bandit Bodies
Finish Line Racing Products
Precision Racing Systems
Integy
IRS
Voodoo Paint Werx
Dr. Graphics

In all the diffs that I build (usually Lauren, Rick and Myself) I use Finishine diff balls and "The DIFFERENCE" Finishline diff lube. Also for your bearings try the Blue Lightning bearing oil and you can also get bearings from Finishline.

As far as ceramic to stainless steel balls, I have used both and there isent that big of a difference. And the stainless steel balls are cheaper.

When building your diff make sure to do a figure eight with an old hub (just to make sure all sides are sanded equal and its easier) on a piece of 600+ grit sandpaper untill the circle on the ring is gone.

Try a PRS spur gear and pinnion to go with that also!
ceramic balls will last essentially forever. steel balls will not, thats the big diff. haah nice pun eh?