The NMMTPA does not have an “official” supplier so in an effort to help out new pullers we have compiled the following list of parts and their suppliers-----
......Boca.com for a 1/4 hex ,,7x13x4MM,, MF 137-ZZ. 4pack for 1/4 round BWK 188F-ZZ
......VXB.com for a 1/4 hex ,,7x13x4MM,, kit 6914..... for 1/4 round .. kit 776
.......... Tower Hobbies.com...32P 14T LXEW99....32P 13T... LXEW98
.......... Stock Drive.com.. 32P 42T AIM-2-Y32042.. 32-44-etc just change last # to tooth size.
......... Traxxas 32P 72T 4472
1/4 steel hex shalf you can get at NAPA but some are not true...# 224-61118
1/4 Broach you can get at Enco.com along with other tools
Glow Plugs..... ebay....Merlin.com
All sizes are on ebay.com also for our pro stock class GoNitro.com VRXB1040
Pro Stock rims---Bill Vote--515-544-3387 firstname.lastname@example.org
Pro Stock- tires--contact Larry Bennet at 765.471.6088 http://www.rchobbiesplus1.com/products.htm
PAYMENT OPTIONS--CHECK, MONEY ORDER, OR PAY PAL
Robert Johnson (270) 776-2186
Anyone can build a gearbox without expensive machine equipment! Just takes a little time
and some patience. You will need a digital caliper some math and drill press and some hand tools.
Take your alum tube spray it with blue layout dye or paint will work. Lock your caliper at desired
Distance (.500 in this case) uses one tip on edge of tube and drag other along length to make centerline.
Decide where you want rear axle to be and center punch it with fine centerpunch. Next comes the fun
Part MATH (very easy)
C= n+N C -center distance between gears
2P n-number of teeth on pinion
N-number of teeth on spur gear
2P-2 multiply the pitch (32)
14+72 divided by 2x32=1.343 inches
Now lock your digital caliper @ 1.343 this will give you zero clearance between the gears but I have found That with a little play in bearings and shafts this will be a perfect mesh! Place one tip in rear axle centerpunch Hole a then drag other tip across the centerline in a small arc. Carefully centerpunch the intersection ofThese two lines! See pic
Layout All your shaft holes this way before any drilling begins!