Chevrolet's cab-over line is a rebadged Isuzu: the 3500, 4500, and 5500 are Isuzu Elf/N-Series trucks while the 6500 and 7500 are the larger Isuzu Forward, all sold under a GM-Isuzu collaboration announced in June 2015 that put them on sale for 2016. At launch the LCF was the only gasoline-powered low-cab-forward truck in North America, fitting a GM V8 (later the 6.6L L8T, replacing the 6.0L L96) where rivals offered diesel only, and its cab tilts forward for full engine access.
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Common replacement parts
Real products from the PartsNow catalog. Confirm fitment with Mike before ordering.

3030HNTRX
3030HNTRX - 3030 SPEC LONG SHAFT HNTRX BRAKE CHAMBER

OTR10143
OTR10143 - AUTO SLACK ADJUSTER, 11/2-10DRIVE 5.5,6.5

5-808330
5-808330 - BRAKE KIT FOR 4709DEN SHOES

370036A
370036A - OIL BATH SEAL

348-4195
348-4195 - HUB CAP (SENTINAL LARGE DIAM)

5008414PGBXW
5008414PGBXW - AIR DRYER CARTRIDGE, PURAGUARD

11444
11444 - GLADHAND BRACKET MOUNT

15W40 OIL
15W40 OIL - 15W40 OIL (ROTELLA) GAL JUG