4472 I believe,
http://www.ebay.ca/sch/i.html?_odkw=72+tooth+spur+gear&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.X72+tooth+spur+gear+traxxas&_nkw=72+tooth+spur+gear+traxxas&_sacat=0
^^^LOL^^^ ...dezza check in there, might find what u looking for if u eventually looking for vented bell
http://www.ebay.ca/sch/i.html?_trksid=p2050601.m570.l1311.R3.TR3.TRC1.A0.Xhpi+savage+clutch&_nkw=hpi+savage+clutch+bell&_sacat=0&_from=R40
Maybe this could help, http://www.amainhobbies.com/product_info.php/cPath/1_221_911_1948_2957_2963/products_id/218869/n/Viper-R-C-Copperhead-R-ESC-VX4R45-4-Pole-550-Sensorless-Brushless-Motor-Combo-4500kV
++1 on this, and would fix your pinched wires you mentioned before as well. I got the exact one in both my Savage and as been good to me.
http://www.ebay.ca/itm/HPI-Receiver-Battery-Pack-6V-1200-MAH-W-Charger-Savage-/350853774205?pt=Radio_Control_Parts_Accessories&hash=item51b083bb7d
And yes a...
Don't give up so easily, ull get it...u might wanna check ur idle screw so that u have 1mm gap even with the brake applied, it prob closed when u press on the breaks. keep us posted on this.