Broken plastic piece on channel balance and broken plastic piece on sash

Thanks for your photos. Based on what I see here, you have either our S380-33 or S385-33, depending on the depth of the bottom shoe. That's the only difference between them. I recommend measuring your shoe and referring to our dimensions to confirm the best match.

For the top sash guide, I actually don't think yours is made anymore. I think you might have to use our 18-009 but only after you trip the top edges off. Look over the dimensions we show for this product to confirm and let me know what you think of my proposed solution.

We do make the 18-188, but my concern is that the dimensions don't match up. If they do, then that would definitely be your best choice. But looking at your old photo I think you have a specific part that isn't made anymore. I could be wrong, of course, I'm kind of just going with my gut on this one, but definitely review the dimensions we show for each product to be 100% sure. If they differ in any way, let me know and I can find something better for you.

If your sash weight is 35.5 pounds then I'd go with the 3265 option. If your sash were exactly 35 pounds on the dot then you could theoretically use both options, but since it's a little over we're safe to go with the 3265. You definitely don't want to use a stronger spring than what your sash weight is, though, otherwise your window will be difficult to close and could even drift up on its own volition.