Any GM A-body AC box from that same body style. That includes the Chevelle, Skylark, and Cutlass.
Any 1978-87 El Camino or GMC Caballero
g-body 1978-1988
Question way too vague, need to be more specific
No, they will not interchange.
Pretty easy because there was no El Camino SS in 1978.
try this page www.chuckschevytruckpages.com/77fusebox
No
1968-72
From what I understand:1980 & 1981 complete grill with the headlamp bezels will interchange
65 66 and 67 will interchange.
Doors from a 1978-87 El Camino or GMC Caballero
location of fuse box on 1981 chevy el camino