View Full Version : Ordered a new diff...
ElectricThunder
04-25-2006, 06:24 PM
I think I made a thread or told ya'll bout my mishap with my stock differential in my Rusty. So I decided, seeing as how that was my 3rd diff, I wanted something stronger. So I got...dun dun dun dun... a steel/aluminum one off of rc-monster...:D
Anyways, anyone run one of those suckers in a rusty or pede? Curious as to whether or not it will create interference (I'll be sure to grease it up well though, so that SHOULDN'T be a big problem). Also would like to know your impressions. Should get here tomorrow I think.:D
I have been running one for awhile. I like it.
I've noticed if you start breaking the teeth on the diff a lot, usually the aluminum idler teeth have worn and gotten real sharp. Then it tends to eat the diff teeth. Sometimes it's the top gear that gets sharp teeth then eats all the others. I've seen this happen a few times. It is real hard to tell that the teeth have gotten sharp until you compare a new one side by side with the old one.
ElectricThunder
04-25-2006, 07:26 PM
Uh oh.... I hope that same thing doesn't happen with me. I'm only running an HV maxx, so it probably won't suffer as bad as a 12s on 4s lipo or something. Thanks for the info Muck. I'll have to keep an eye out for that. Can you get just the gear piece from mike if it wears out, or do you have to end up dropping a whole 'nother 70+ bucks?
tcolesen
04-25-2006, 09:30 PM
I'm still running the same plastic diff that I got 5+ months ago, and the same aluminum idler that I got 2 years ago. Most of this time the aluminum idler has seen a Feigao 8L (at first) and a 12s, and the diff has seen the 12s, and the new diff has only seen 4s Lipo.
One thing that really strengthens the tranny is the FLM aluminum gearbox case. It holds the mesh of the internal gears well, and believe it or not, it makes the gear case almost silent! Now, all I hear are the tires and motor, not the internal gears. This gearbox is $60, but for that you get a good gear mesh, an aluminum motor plate, and aluminum (detachable) suspension arm mounts. IMO, it's a VERY worthwhile upgrade.
Umm no, I haven't had any problems since I switched to the steel/alum diff. Hopefuly that diff will hold up even if the idler gear doesn't.
My problems have always happen with the plastic diff. I was just trying to warn you if you are going through plastic diffs to check your alum idler gear and your top gear. They can be the cause. It can be real hard to tell until you compare them next to a brand new ones. The alum idler has kind square edges. With use, over time the teeth get sharp.
I like the idea of the alum tranny case. I've looked at those many times. I occasionally break off the rear A arm mounting tabs which means you have to replace the entire tranny housing. I'm sure the alum unit would cure that problem.
tcolesen
04-25-2006, 10:32 PM
Yes, it does. So far I've broken a rear arm and severely bent the hinge pin for that arm, and the mount is fine. It does have a slight gouge in it from the steel hinge pin, but what do you expect? Even if one does manage to damage a rear arm mount on the aluminum tranny, replacements are cheap.
ElectricThunder
05-01-2006, 05:07 PM
Finally got around to putting the new diff in today. All in all, I love it! I think the drivetrain is much smoother/quieter with this thing in as opposed to the plastic one... :confused: So far I've kinda put it through its paces (erratic wheelies, sudden wheelies...all sorts of doughnuts...blah blah blah) and it's holding up beautifully. I set the slipper back a notch too just to protect my investment...:D