The starter is only about a year old. I know that inside the steering column has problems otherwise I wouldn't have to lift up on the steering wheel.
Hmm..
Is this a TILT column or NON tilt Colum?
So does this truck start or turn over when you jump the solenoid on the fender?
Have you checked all the grounds and battery connections for good clean contact?
Are batteries in good condition and have a good charge?
Is the fender mounted solenoid hanging there or is it properly grounded via mounting to fender?
If you (on fender solenoid) jump from small terminal to the large terminal that leads to starter does it turn over?
Are the connections on the Starter good clean and tight?
Have you removed the starter and taken it in for testing?
How about a rebuild kit for STARTER SOLENOID? Or is starter under warranty?
TOO many questions....not enough info...
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JM2CW
Al