2M0105 4VP WHAT DOES THIS # MEAN on my Chevy truck

codes OBDll and available on free.
example P1516 code
https://www.way.com/blog/p1516-meaning-symptoms-causes-and-fixes/

https://www.engine-codes.com/p1516_chevrolet.html

https://www.troublecodes.net/p1codes/p1516/

It means there is a leak in the e vac system

What year chevy truck ? model ?

RPO Z77 was the 1980 Chevy Sport/GMC Street Coupe exterior graphics packages that exclusively used the cloth seat with the addition of the floor carpeting, deluxe front grille, and deluxe instrument cluster. The option also included Rally wheels as standard, was available only on the 1976 to 1981 Chevy/GMC short bed 1/2 ton pickups.

Change the 02 sensors and check for vacuum leak hoses evap , then disconnect battery and test again .

trouble code p1174 for 2008 chevy 1500? P1174 indicates fuel trim cylinder balance malfunction.

If you mean length, not necessarily. You'll have to measure from where the tail shaft bolts to the main transmission case. If you mean the T400 driveshaft sliding into the 700R4, then it shouldn't be a problem. Hope this helps.

2002 Chevy trailblazer was put on machine and had codes U1041-P1633 and P0014 stored in ECM What does this mean

Maybe, I think you mean the Ball Joint Boot???? you may be able to get on from chevy dealer

74 Traction control circuit voltage low