I believe that I've heard that the diaphragm style clutches we use these days take a little more travel than the old 3-finger "Long" style that came factory. This does not have to be a problem, but if things are already borderline, any extra slop or flex will just make matters worse.
And is your clutch pedal bumper adjusted properly? (
http://www.wildhorses4x4.com/product/ClutchPedalBumper66-77). This is an eccentric thingy that is used primarily to set the clutch pedal height as close to the brake pedal height as is reasonable and still get a full throw on the clutch. It's usually the first step in the clutch pedal adjustment procedure.
Your description of it always needing a readjustment however does sound like one or more of those wear items are on their way out.
The bushings, and possibly even your clutch pedal rod are wearing or wearing out. A pedal rod can wear at the pivots and actually start to bend/deflect as it ages too, which might explain at least part of the issue.
And that wear and bending is pretty much a preview of it breaking completely, like mine did one morning on the way to work.
Another item that wears out and causes adjustment issues is the release bearing fork pivot that's riveted to the bell housing on some models. As it wears or works loose, your clutch can need adjustment to compensate. Until it finally falls off or breaks in half. Again, like mine did many years ago.
So yes, improvements could be had by any or all of the following:
1. Pedal pivot bushings:
http://www.wildhorses4x4.com/product/Brake-ClutchPedalBushing
2. Pedal rod bushings:
http://www.wildhorses4x4.com/product/Clutch_Rod_Bushings_Pair, OR
3. A new rod as discussed.
3. Equalizer/Transfer/Z-bar bushings
http://www.wildhorses4x4.com/product/Equalizer_Bar_Bushing_Kit
4. The equalizer bar ends themselves can crack and get worse
http://www.wildhorses4x4.com/product/Equalizer_Bar
5. Making sure the return spring is good too, to keep consistent tension on things when adjusting and under normal use.
6. Hopefully not one of the fork pivot disasters. What a pain to take it all apart again!!!!
Plus a few more most likely. Many of those items listed would have very little effect on their own, but added together could easily cause what you're experiencing.
Paul