tmaxx diffs

[Bkyd Basher]

is there a specific way the diffs hav to go in as far as upside down or backwards?

 

[Zdragon71]

Looking at front screws need to be on the right. Looking at the back the screws need to also be on the right.

 

[Bkyd Basher]

why would it make a difference

 

[MudSlinger33]

If both diffs are installed the same way, the wheels will spin in opposing directions.

 

[SchrodeMode]

If both diffs are installed the same way, the wheels will spin in opposing directions.

Done it before, did a rush job of putting a Revo back together. It was a tug-o-war, with 1 truck.

 

[mrbones]

Yes there is and if you don't do it right, it will try to go in both directions at the same time. (I know this from the experience!) It was kind of funny though.

 

[2.5 4life]

they will only go one one way

 

[rak12]

Done it before, did a rush job of putting a Revo back together. It was a tug-o-war, with 1 truck.

+1 on a Tmaxx!

 

[Snook Man]

why would it make a difference

The diff-erence is the ring gear is offset to the side of the input pinion.

With the same rotational input to the input pinion, flipping the diff 180° results in the output shafts/wheels turning in the opposite direction.

The confusion occurs because the input pinions are facing each other, meaning the ring gears have to be installed opposite of each other to work n the same direction.

If front diff is installed upside down the wheels will try to push the truck together, rear diff upside down results in a tug-o-war.
Both diffs upside down, results in the truck going backwards with a foc.

I have purchased many used 4910 maxxes that had both diff installed upside down and the previous owner was unknowingly running it in reverse gear to go forward.

 

[chickenman242]

haha think we've all put diffs in upside down at least once

 

[cwal1774]

I have done this before as well. I took a small screwdriver and scribed a T on the top side and a B on the bottom side of both diffs.

 

[HobbyGuyMod]

If both diffs are installed the same way, the wheels will spin in opposing directions.

Did this with my Bruiser build, head was scratching!

 

[rak12]

Same concept as Cwal, but I used some modeling paint and just painted the top of them to match the chassis.