hydraulic clutches cant be adjusted,it might be that your slave cylinder is leaking,look at your transmission,theirs arubber cover that your s. c. is coming thru ,if its leaking,then replace and bleed system ,if not then u need a new clutch.
no 84 and 85 swap out.
36.5 psi
no they changed in 88.
4.5 qts.
bad piston rings.
you must take front grill off.
89 and 90
follow the cable from fire wall to transmission.
their is not one
Its hydraulic ,you cant,check your slave cylinder to see if its leaking,its located thru a rubber cover on side of transmission,if leaking replace and bleed,also check clutch master cylinder,if not leaking,then you might need a new clutch kit.
haynes repair book at auto parts store or get a Nissan truck service manual,check eBay .the dealer wants 75.00.
Yes, you need to get a top loader transmission and linkage