Fremont Assembly Plant, Fremont CA.
Fremont Assembly was in Alameda Co, 23 miles south of Oakland.  The 411 acre site faced the Nimitz freeway at the Landing Rd-Cushing Rd interchange.  The purpose of the plant was for assembly of Chevrolet, Pontiac, Buick and Oldsmobile passenger cars along with Chevrolet and GMC pick-ups for sale at GMs western dealers.  Fremont had the capacity to build 42 cars and 25 trucks per hour on two shifts daily.  That totaled 1,072 vehicles a day.  112 body styles (44 car and 68 truck) were produced there.  The first truck was produced on May 1st 1963.  Pilot production of cars started on July 29th and regular car production started on September 3rd 1963.  Fremont was the only plant besides Lansing Assembly to produce 442s from 1964 to 1966.  The plant in Oshawa, Ontario, Canada made Cutlasses, but not 442s, in 65 for the Canadian market.  My 442 was produced the second week of March 1965 at the Fremont plant.

The Building of Fremont Assembly
Fisher Body Fremont
Metal finshing department.  Here the doors and trunk lid are fitted to the bodies and any rough spots are sanded or ground down to make for a smooth surface.  Bodies are then inspected before being placed on the overhead conveyor that takes them through the rust proofing and painting process on the second floor.
Vehicles receive  gleaming exterior finishes in Fremonts state of the art spray booths.  The large volume of air supplied to each booth, sufficient for 300 average sized homes, is electro-statically filtered.  Temperature and humidity of incoming air was also closely controlled.  Notice on this Cutlass hardtop the overspray and chalk marks on the firewall.  The firewall was then blacked out after the paint process, thus covering up the marks and the overspray.
Engine drop line.  Frames are suspended with chains from the overhead line.  Engines came in on hoists to be lowered into the frame mounts. Note the nailhead Buick on the next hoist and the 330 Olds on the far hoist.  Also of note is that the A arms are not painted at this point.  And for the Olds purists, the oil filter on the 330 was painted gold when the engine was.
Body drop line.  Notice now the A arms are black, along with the brake line closest to the upper arm.  Fremont must have had a blackout process like Lansing, where the frames bare spots were covered in cheap black paint.
As part of the reliabilty and quality control program, all cars at Fremont went through a water bath to test for body leaks.  Large shower jets hit the bodies from all sides and a blower is used to make a partial vacuum within the car to help find any water leaks. 
Complete and ready to ship to their prospective dealers