In most vehicles helper springs help hold, not raise.
stock springs
Yes, but only if the old ones were sagging.
raise the action (string elevation) lower the pickups springs or.. adjust the neck
a jack.
That's a multi page answer, if you want give me an email and I will scan and send you the pages from a maintance manual stapo22
in a group of other penguin off springs
Raise and support the front end. Follow the bars back to the transmission cross member. There is a large adjusting bolt at the end of each bar. Tigthen it or loosen it according to you preference. Tightening it will raise it. I believe the 95 has nuts above and below the crossmember. Loosen those before you start making adjustment. With a measuring tape match the length of the bolt coming out of the top on both sides to get an equal ride height. Drop the truck on level ground to check your ride height.
It depends on what your raise is, money, distance, height, etc. This needs clarification.
For the front you turn the torsion bar nuts (one on each side) like your tightening them to raise the front of the vehicle and for the back you can add air shocks or more leafs to the springs, be sure to get the vehicle aligned when doing this as it will throw the alignment off.
You can´t.
subfloor or gypcrete
to Raise a car you need to modify the suspension by getting larger springs, body mount lift blocks and adjusting the alignment once it is raised