I did a sportmaxx a while back... Used the old single speed tranny internals, a 15l and a bk esc. With nimhs..... If you have a tmaxx sell it off and buy a new emaxx, much better truck and easy to add bl to.
I did one...To make your life MUCH easier..pick a gorilla maxx chassis if you can find one. I tried other chassis set ups, but the GMaxx set up by far is best. You will also need new diffs ifyou plan to run on on 5s or more.
1. MBX-6 T8 1900KV, RX8 ON 4S
2. MBX-5T 1520, MMM ON 5S
3. MBX-5 ONROAD CONVERSION 1515, MMM ON 5S
4. MRX-3 ON ROAD CONVERSION 1512, MMM ON 6S
5. TEN T 2650 T8, MMP ON 3S
I agree with what everyone said. I did it with my thunder chassis but it was better to just get a gmaxx chassis and build from it.
Castle Neu 1520 on 6S LiPo Powered Gmaxx (Nitro Killer)
Predator with OS .21TM
Supermaxx with Mach .26
Revo with OS .18TZ
Kyosho ST-RR Conversion
Ofna CR with Tekin ESC/Motor (2)