@jht3 I think you have a number of options, including sourcing the OE caps that came with the running board equipped trucks and that mount to the bottom of the flare and cover the front of the slider to some extent.
Read this thread for a nice overview of options/ideas including flaps from other trucks, modifying factory flaps, etc. You'll have to figure out the best balance of cosmetic refinement and functionality for your uses.
forum.ih8mud.com
Keep in mind that front mud flaps are a liability in many off-road situations and make your flares vulnerable to damage. High and tight will help reduce the risk of a flap bump knocking your flare loose. For that reason I plan to use the OE pieces that came with the running board equipped 80s though I'll likely trim a little off the bottom to reduce how much is sticking down below the protection of the step sliders. Hopefully my cuts will look ok, but my main constraint is keeping debris from the front tire off of the top of the slider as much as possible while also not needing to worry about a small bump damaging the flares.
Read this thread for a nice overview of options/ideas including flaps from other trucks, modifying factory flaps, etc. You'll have to figure out the best balance of cosmetic refinement and functionality for your uses.

Sliders..but I need mudflaps. Suggestions?
I want to buy sliders for my '97 but I need to have some type of front mudflap protection. Details... -Cost up to $1000 is fine. -I don't know of a good local 'custom' slider builder. -I would like to buy bolt-on sliders. My vehicle is used on-road 90% of the time but when I do...

Keep in mind that front mud flaps are a liability in many off-road situations and make your flares vulnerable to damage. High and tight will help reduce the risk of a flap bump knocking your flare loose. For that reason I plan to use the OE pieces that came with the running board equipped 80s though I'll likely trim a little off the bottom to reduce how much is sticking down below the protection of the step sliders. Hopefully my cuts will look ok, but my main constraint is keeping debris from the front tire off of the top of the slider as much as possible while also not needing to worry about a small bump damaging the flares.