wannabflyboy

My Feedback: (10)

Posting this for a friend (I'm a plane guy). He just did some work on his gas S Mazz (no reverse gear installed) and now it only goes backwards. Any thoughts?

1QwkSport2.5r

Either the engine is running in reverse (wont be running very good if this is true) or one of the one-way clutches (aka one-way bearings) can be installed backwards.

wannabflyboy

My Feedback: (10)

Where would these bearings/clutches be found?

LaTuFu

My Feedback: (1)

Or the diffs are installed upside down.  I did that on my Revo the first time I reassembled it.

Snook Man

SMaxx has only 1 diff (rear), it is installed upside down.

If the engine were running backwards the OWB in the transmission would not allow it to move at all.

1QwkSport2.5r

I didnt think about that or the diff being upside down. I thought most models with diffs external to the transmission couldnt usually be installed upside down... Maybe I'm wrong..

Snook Man

All Maxx trucks (T/E/S) have diffs that can be easily be installed upside down.

It is a very common mistake with those models.

Even the Revo models have diffs that can be istalled incorrectly, they have an UP stamped on the diff housing and it still happens

LaTuFu

My Feedback: (1)

Yes it does!  When I did it, I looked for the up markings, aligned it properly, then put it down for a second to grab another part.  Inverted it without realizing it, and presto, reverse gearing!

mtz57

does anyone know the part number for the parts needed to make the s maxx to run reverse and to make it 4x4

NBCTANK

Here's the kit to make it 4X4 part#5191X.

http://buy.traxxas.com/product_info....oducts_id=7527

Also check diff installation of the front. The other common mistake is to flip it and the wheels spin in opposite directions.