tire ballooning in the rear, but not front...

[What's_nitro?]

Well, I can tell you that the front tires are going backward because you put the front diff in upside-down. Just flip it over so the diff spur gear is on the other side of the diff input pinion. As far as the rear tires ballooning more, with the front tires pushing back, that would amplify the symptoms. Are your rear shocks set up very stiff? That will cause more weight to stay in the front on acceleration and so the rear will slip more. How is the F/R balance of the truck? Are the batteries/motor in the stock locations? (sorry, I'm not the E-maxx pro on here :/ )

[jayjay283]

you could always put this in CD LINK fill it wil diff locker fluid, and all 4 tires will spin the same provided you have the same diff fluid in the front and rear diffs.

Originally Posted by What's_nitro?

Well, I can tell you that the front tires are going backward because you put the front diff in upside-down. Just flip it over so the diff spur gear is on the other side of the diff input pinion.

the diffs are in correctly. what i was saying is that the front diff is getting power because if kicks up dirt when i nail reverse.

Originally Posted by What's_nitro?

Are your rear shocks set up very stiff? That will cause more weight to stay in the front on acceleration and so the rear will slip more.

yeah, pretty stiff all around; 2 UE white springs at each wheel with 50wt. i don't think this is the problem, as i've had this setup for a while now and this behavior just started.

Originally Posted by What's_nitro?

How is the F/R balance of the truck? Are the batteries/motor in the stock locations? (sorry, I'm not the E-maxx pro on here :/ )

51% - 49% (F/R). everything in stock location.

Originally Posted by jayjay283

you could always put this in CD LINK fill it wil diff locker fluid, and all 4 tires will spin the same provided you have the same diff fluid in the front and rear diffs.

the purpose of a CD is to allow the front and rear to spin at different rates. i have the stock tranny that spins the front diff and the rear diff at the same rpm, so the front and rear tires should spin at the same rpm.

[jayjay283]

Originally Posted by FunkedOut

the purpose of a CD is to allow the front and rear to spin at different rates. i have the stock tranny that spins the front diff and the rear diff at the same rpm, so the front and rear tires should spin at the same rpm.

The purpose of locker fluid is so they dont, I was going to point out the obvious like your tires are full of mold from water or your bearings are shot but being RCM I thought we were past this and was pointing out something to consider. That diff goes in the stock tranny BTW. GL

Originally Posted by jayjay283

The purpose of locker fluid is so they dont, I was going to point out the obvious like your tires are full of mold from water or your bearings are shot but being RCM I thought we were past this and was pointing out something to consider. That diff goes in the stock tranny BTW. GL

jj, don't put anything past me. as you can see, i'm capable of forgetting all kinds of things. state the obvious.

as far as the center diff goes, i never figured you meant to take out a solid axle and replace it with a differential only to lock it again with locker fluid...
...you know, this being RCM and all.

[What's_nitro?]

Originally Posted by FunkedOut

the diffs are in correctly. what i was saying is that the front diff is getting power because if kicks up dirt when i nail reverse.

Ahh, I see. I had a picture in my head of the truck throwing dirt forward and back, digging a hole until it was resting on the skid plate.