i have to push the clutch pedal almost through the floor to put the 4runner into gear is there an adjustment for this or is the clutch going?

 

Yes, there are two adjustments that could help. One is to bleed the clutch system of any air in it. The other is to adjust the pedal height/freeplay. Pick up a repair manual at a local auto parts store and it will explain how to do both.

Another possibility is that the seals inside the clutch master cylinder are worn out. Basically, fluid will pass by the pushrod/plunger when you step on the pedal, effectively causing less pressure in the system and not moving the clutch fork as much as it should.

 

There used to be an article on how to adjust free play, however this PDF should cover it (lists a lot of toyota models):
http://www.trdhotwired.com/InstallMa...-31201-xxx.PDF