Changed the pulley because I didn't like how beat up it was...Steiner uses AB pulleys so they are compatible with Ventrac.. The same belt works on both Steiner and Ventrac.. I've used the broom on both machines... The only difference is that Steiner runs a 6" engine pulley ,the Ventrac is closer to 7 inches.. And the double idler is slightly larger on the Ventrac so sometimes a half inch to 1 inch shorter belt is required to run a Ventrac attachment on a Steiner, and vise versa. I find it out half of the attachments have enough adjustment left to not need a belt change ... The rototiller does require one the broom doesn't,the mower decks do,the leaf blower doesn't... There's also a speed difference the Ventrac attachments run a little slower on a Steiner than they should and Steiner ataxhments over speed slightly on a Ventrac, its not a big difference but its definitely noticeable...