power seat adjuster driver's side 2010 imp.

[FISH96]

2010 impala
3.5 litre
vin k

automobile out of warranty because of mileage 42k+.
does anyone have the part number for the entire adjuster
assembly or the components or the adjuster assembly. costs would be appreciated also.

the verticle movement motor runs without vertical movment in the front portion.
the verticle movement for the rear portion operates as it should, as well as all the other operations horizontal.

as you may tell from the mileage i spend much time in the car.

i am supposing either drive cables are at fault or there is some gear(s) that is not meshing or teeth missing from breakage. regards and thank you