Is the engagement cable routed Ok on top of the deck IE not on top of the brake link. 954-04060b is the belt #. Also, many of these engagement arms on the top of the deck can fit either a 38 or 42 and will mount different and use different spring holes.

Thanks, folks, for all the good clues on the red wire issue above! I have a 2009 LTX1046 and had the same symptoms with the PTO cutting off at medium speed, as well as the no-reverse cut-off. I added 6 inches of wire, soldered and taped, to both the green and red (mine was black and white, but I traced it upstream and found red) wires. To answer the question from HU-680248234 above, yessir, you were correct, that was the location of the red wire connection. Note that what you were referring to is actually a blade electrical connector. I pulled it off with needle-nosed pliers and replaced with a new one soldered onto the end of my red wire. After reinstalling, give it a squeeze with pliers to ensure the new one stays in place. Views below are from below and the top (through the battery hole).

Hey folks, so I'm posting this follow up in my original thread because I think I have a related problem. Last year, I replaced the PTO drive belt and the mower blade drive belts on my inherited JD STX 38 Yellow Deck. Today I took the mower out (NOT the first time this season) and had some serious issues. First of all, the grass is tall - 18-24 inches. I had the mower height set to the tallest height. The grass may have also been slightly damp - although not wet. I was able to cut basically one path, then I realized that although the PTO was engaged, the blades weren't cutting the grass. I was going at the slowest speed (first gear) and even tried cutting using only 1/2 of the mower deck width at a time - no help. I took the mower back to my driveway, cleared out lots of old clumped grass from the blades, and started the mower and the PTO. The blades were definitely turning. I turned off the mower again, and noticed that the PTO drive belt is looking terrible - it's all pitted and slack - it's not tight around the PTO shaft! So, my theory is this: the PTO drive belt is shot again (Although not broken yet) - so the blade spin when I'm not trying to cut anything, but when I come in contact with any sort of grass of substance, the slack belt is "slipping" and resulting in the blades not cutting? Does this make sense? Solution: replace the belt AGAIN???? A few more things to note: 1) I tried cutting shorter grass and drier grass and had very little luck. 2) why would my PTO drive belt, just replaced a year ago, be so shredded already? That's worrisome... any advice would be appreciated. thanks.

Had the same problem with Cub C (MTD) tractor. Was the battery.