lawnfarmer, i refused to pay what northern tool wanted for one so i created my own .
ok i took a metal 15 gallon drum with banded top. then i made two hole for two 1/2 x 3 bolts in the bottom on the side . i tightened two nuts to hold them onto the barrel. kind of like studs . i then built me a sheet metal guard by really just bending it to fit as i didn't have bender.but i left enough on the top to make two elongated holes that fit over them there studs. this is so i can adjust the height of the spreader mechanism. and again use two nuts w/ lock washers to hold it.
now back to the guard i left enough to be able to bend parallel to the bottom of the bucket. this is where i'll mount the motor. now being that i have contacts and all i got me a free 12 volt motor off of a camper fan from my friends camper dealership. i just drilled me two holes in a coffee can ,yes a coffee can,the bottom of the can cause the bottom is going to be the top on the spreader. and then mounted the motor w/ the two screws provided on the motor. drill a hole to run the wiring out the side and get enough wire to go to a 12 volt rect. on your wheeler. add a 12 plug and oh yeah a switch is nice. i found one of them to in the scrap at the camper store.
ok now the motor and housing is ready( remove the folgers logo)
i first riveted it to the sheet metal that is parellel to the drum but this didn't last long and now have added two screws with oversize washers.
ok for a spreader mechanism (terminology)i bought a moultrie upgrade for the feeder. 9.95 at wal mart in the sporting goods section.fits right on the 12 volt motor shaft and even tightens with included hex screw.
now another hurdle , mounting to the four wheeler, i all ready had built a tree stand carrier a few years ago. actually montana jack stole my idea. i took 1" inch sq. tubing that fits inside the 1 1/4 " tubing of the stand carrier. well once it's in there i have a 3/8 nut welded to the 1 1/4 tubing and a screw? round stock to aid in tightening. i just tighten it down and it's there.
man my fingers hurt. i have never tried lime but have spread tick granules. oh yeah i added sheet metal sliding door on the bottom to stop or restrict the flow of whatever i am spreading.
If i had a picture i would figure out a way to show you. you wouldnt steal my idea would you . and if you did i would expect royaltys.
maybe i can figure out how. give me a little time and i may draw it out . it wasn't hard i just messed with it over a few months instead of playing on this thing.

SOUTH ARKANSAS REBEL