They are 3.3 spec. They will fit the #3905 New E-Maxx. The #3906 will need additional parts or modifiction to fit, such as 3.3 axle carriers and turnbuckles.
Nevermind my comment about the old emaxx, I'm set up like the new one with all the 3.3 stuff.
I have the 3.3 sliders and am looking for an alternative. (Proline shock perchs are rubbing the sliders)
Another part question. I need a front body mount(the round type and in plastic). According to the LHS they are not making them anymore. Beside the Proline tall type for the rear mount is anyone making the front mount in the round version? I have the FLM shock towers and don't wish to change them to accomodate the newer square type.