[94 K2500 350tbi]

The common air filter size of 3.5” is too tall to allow the air filter housing to close completely. I have to buy a 3.25”. Is it supposed to be like this? All air filters for this truck at auto parts stores and online are 3.5”. Anybody know what’s going on here? Thanks in advance for any assistance in solving this mystery.

 

[BackyardMech]

Should be 3.5.

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[Cowboytrukr]

You have a photo of the housing you can share?