73-91 K5 gas tanks interchange?

[wazzabie]

Can any year of the 73-91 K5 gas change interchange?

 

[rampage]

According to LMC there are three different ones.

Gas Tank and Components

Explore our gas tank and components for Chevrolet Blazer, GMC Jimmy and Chevrolet/GMC Suburban 1973-91. Ideal for revamping and personalizing.

www.lmctruck.com

 

[kennyw]

LMC shows 73-81, 82-86, and 87-91 generation breaks. 82 was likely an additional port for return line, 87 was the addition of a baffle for TBI.

 

[fastazz81]

They bolt in with the correct straps difference is Filler neck diameter.

 

[Blue85]

I think the return port is in the sending unit, not the tank.