Does anyone know where I can get detailed information on the stock front springs on the Titan? I am looking for outer diameter, free length, maximum compression stroke, spring rate, etc.

This is what I found in the service manual. It's just free height. I will keep looking though.

Coil Spring

Front spring free height
4x2 : 334.5 +/-3 mm (13.2 +/-0.1 in)
4x4 : 355.5 +/-3 mm (14.0 +/-0.1 in)

Thanks, that is a start. I guess worst case I could purchase one and have it tested for stiffness.