Truck

NOTE: 26-1/4" Wide Core, 2-3/4" Wide Mounts

Year(s)	Engine	Core Size	Rows
1973-77	6 Cyl	17 x 26-1/4	2,3,4

NOTE: 28-3/8" Wide, Factory 2" Thick Core, 2-3/4" Wide Mounts

Year(s)	Engine	Core Size	Rows
1973-77	6 Cyl	17 x 28-3/8	3,4

NOTE: 28-3/8" Wide, 17" Tall, Factory 2-5/8" Thick Core, 3-1/2" Wide Mounts

Year(s)	Engine	Core Size	Rows
1973-77	V8	17 x 28-3/8	4

NOTE: 19" Tall, 28-3/8" Wide, Factory 2-5/8" Thick Core, 3-1/2" Wide Mounts

Year(s)	Engine	Core Size	Rows
1973-77	V8	19-1/2 x 28-3/8	4

NOTE: 28-3/8" Wide, Factory 2" Thick Core, w/ Heater Hose Connection

Year(s)	Engine	Core Size	Rows
1973-77	V8	17 x 28-3/8	3,4

NOTE: Short Version Only, Verify Core Height

Year(s)	Engine	Core Size	Rows
1978-80	6 Cyl / V8	18-1/4 x 28-1/4	2

NOTE: 26-1/4" Wide Core

Year(s)	Engine	Core Size	Rows
1978-80	6 Cyl	18-1/4 x 26-1/4	2

NOTE: 26-1/4" Wide Core

Year(s)	Engine	Core Size	Rows
1978-80	6 Cyl	17 x 26-1/4	2,3,4

NOTE: 28-3/8" Wide Core

Year(s)	Engine	Core Size	Rows
1978-80	6 Cyl	17 x 28-3/8	2,3,4

NOTE: 17" Tall

Year(s)	Engine	Core Size	Rows
1978-80	V8	17 x 28-3/8	3,4