Okay, so I have good news and "other news". Lol
First the good news!
The (weld on) pulleys and engine hub came today! I settled on 6.5" front and 4.5" rear which works out almost the same a 6"/4" but with more belt gription and a slightly lower ratio for more speed!
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In "other news":
With the front pulley sitting flush at the end of the PTO there's quite the void to fill but I need the pulley there for alignment... I'm thinking that if I get a new front pulley for
The WarHorse, cut it's stock pulley tube to length then weld it onto the engine hub so it's full length then I can bolt it down as well as use the keyway and set screws so no biggie right? I think that's a decent plan anyways! This should also allow me to extend the pulley past the end of the PTO if I need to.
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While we're talking about pulley alignment check out how the rear pulley sits about 1" lower than the front when it's sitting directly at the base of the input shaft, theoretically where it could with a hub...
...which brings me to my next points:
~With the tops of the rear tires already almost touching the fender pan (which is at stock height) I can't raise the trans in the chassis much more to get the pulleys to align... a little perhaps but not alot.
~The 5/8" hub for the rear pulley will work great for the MST that's destined to go in but it won't for the FNRs 1/2" input shaft and I'd like to run the FNR at the start.
So here we have a dilemma within a dilemma, even if I got a 1/2" pulley hub it still couldn't get the pulley where it needs to be nor would it on the MST... but with the pulley sitting as close to the case as it can alignment looks decent.
![[23] Brianator's "Silver Bullet" ~ Super Stock Race Mower - Page 3 20230188](https://i.servimg.com/u/f79/20/37/88/44/20230188.jpg)
Luckily I'm pretty creative and have a bunch of parts kicking around!
First I measured the case around the input shaft, 1-3/16" at its largest.
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Okay so maybe I could use a 1-1/4" pulley hub to lower the pulley? But then how to attach that to the input shaft? Well wouldn't you know, both the stock FNRs and MSTs input hubs outer diameter is... you guessed it - 1-1/4"!! I know it's possible to remove the hubs without destroying them or the pulleys because what you're looking at is 2 FNR pulleys, one stock and the other with the MST hub welded in!
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It looks to me like all I'll have to do is bolt the input hub on the trans, install the pulley with a 1-1/4" hub on it, add threadlocker and tighten the set screws... I could even weld the hubs together if I want. I should be able to adjust the trans' height in the chassis to fine tune it as well so I'm hoping this is a big win!
So I guess the "other news" is also good news just more work! Lol