Yeah not quite... You're comparing apples to oranges here...
An older K5 Blazer, yes there are interchangable parts between it and the similar generation full size trucks. But your 99 Blazer is a mid size. Similar generation full size (Silverado) is a completely different platform
UNLESS what your referring to as a Blazer is a 99 Tahoe 2 door, then YES, the K1500, CT1500, whatever you what to refer to them as in the same generation, have a lot of interchangable parts. BUT, these 2 door Tahoe's were never technically called a Blazer, even though I think they should have been...
Last edited by blazen_red_4x4; 09-12-2020 at 08:42 PM.