This is what I am refering to , From Gearhead at
www.fender.com
Truss-Rod
Check your tuning. Install a capo at the 1st fret, depress the 4th string at the last fret. With a feeler gauge, check the gap between the bottom of the string and the top of the 8th fret -- see the specification chart below for the proper gap. Caution: Because of the amount of string tension placed on the neck (some basses also feature graphite reinforced necks, adding to the resistance present while the bass is tuned to pitch), it is advisable to loosen the strings prior to making any actual adjustment. After the adjustment is made retune the strings to pitch and recheck the gap with the feeler gauge.
Adjustment At Headstock (Allen wrench): If neck is too concave, (with the guitar in playing position, looking up the neck towards the keys) turn Truss-Rod nut counter clock-wise. Too convex-- clockwise.
Adjustment At Neck Joint (Phillips screwdriver or Allen wrench): If neck is too concave, turn Truss-Rod nut clock-wise. Too convex--Counter clockwise. Check your tuning, then check the gap with the feeler gauge. Note: In either case, if you meet excessive resistance or need for adjustment, or you're not comfortable with this adjustment, take your bass to your authorized Fender Service Center.
Neck Radius
7.25"
9.5" to 12"
15" to 17" Relief
.014"
.012"
.010"
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Action
Players with a light touch can get away with lower action, others need higher action to avoid rattles. Check tuning. Using the 6" ruler, measure distance between bottom of strings and top of the 17th fret. Adjust bridge saddles to the height according to the chart, then re-tune. Experiment with the height until the desired sound and feel is achieved.
Neck Radius String Height
Bass Side Treble Side
7.25"
9.5" to 12"
15" to 17" 7/64"
6/64"
6/64" 6/64"
5/64"
5/64"
Shimming/Micro-Tilt Adjustment
Shimming is a procedure used to adjust the pitch of the neck in relation to the body. A shim is placed in the neck pocket, underneath the butt-end of the neck. On a few basses, a Micro-Tilt® adjustment is offered. It replaces the need for a shim by using a hex screw against a plate installed in the butt-end of the neck. The need to adjust the pitch (raising the butt-end of the neck in the pocket, thereby pitching the neck back) of the neck occurs in situations where the string height is high and the action adjustment is as low as the adjustment will allow.
To properly shim a neck, the neck needs to be removed from the neck pocket of the body. A shim approximately 1/4" wide x 1 3/4" long x .010" thick will raise the action approximately 1/32". For those basses with the Micro-Tilt adjustment, loosen the two neck screws on both sides of the adjustment access hole on the neckplate by at least 4 full turns. Tighten the hex screw with an 1/8" hex wrench approximately 1/4 turn to raise the action approximately 1/32". Retighten the neck screws when the adjustment is complete. The pitch of the neck on your bass has been preset at the factory and in most cases will not need to be adjusted. Note: If you feel you need this adjustment to be made and you're not comfortable with the procedure, take your bass to your authorized Fender Service Center.