Does anyone know of or know where to find the factory spec for positioning the IROC decals on the doors. I have heard the rear of the door handle is the starting point but can't find a height measurement. Trying to finish a 2 Yr resto.

 

I don't know where you would find that info "writtten"....I would get a look at somebody ele's car ....if you need to take a measurement from that...........

 

I have seen them at the front of the doors and the rear of the doors Maybe they are different from 85-87

 

Not positive but I was told if the decal was on the front of the door it has a 305 and if its on the back of the door it has a 350.

 

if it's on the front of the door it's 85-87 if it's on the rear of the door it's 88-90 i'll look and see if i can find the information again, but it was written somewhere where to start the decal .

 

That makes sense

 

When I bought my 88 Iroc-z I'm almost positive it had the original paint and decals still on it and the sticker was on the front of the door????

 

alright found them for 85-87

For 1985 - 1987, the correct dimensions are:

Driver's
Horizontal: 6-3/8" from the front leading edge of the door to the lower left corner of the "I".
Vertical: 2-5/8" from the rocker molding to the same corner of the "I".

Passenger's
The same dimensions apply but to the lower right corner of the "Z".


I still have to find them for the 88-90

 

I can measure my 88, tomorrow when there is some light.

 

My 89 has the sticker on the rear, if this helps, and it's original paint.

 

From what I've read, 88 - 90 were all on the rear of the door. I really do appreciate everyones input, Thanks

 

Measured the decals on my 88 at the rear of the door, four inches from the rear of the door to the bottom corner of the decal, 5 7/8" to the bottom of the decal to the bottom of the door to the bottom edge of the plastic cladding. Might have been 6 inches to the bottom of the steel door? Hope this helps.