Originally Posted by
Bob Barry
Parts needed for Losi Big Bore Spring conversion
RPM spring collar #70322 / Traxxas version #3768 (use either or)
TLR Ft 12m spring , silver #5174
TLR Rear 12m spring , pink #5168
TLR Rear 12m spring , yellow #5167
TLR 12m spring cups #5095
yellow rear if you need more traction
GHEA Spring Collars (very nice)
part number - GHEA2070
Available at Absolute Hobbies or directly from GHEA overseas.
http://www.absolutehobbyz.com/produc...9r5s7jpfvbqqn1
Added the info for GHEA Collars and Absolute's link to my post (also in my sig)