Biggest tires on a stock 78 Gmc 3/4 ton

[Zack]

Hey guys new to the forum and have lots of
Questions . I have a 78 gmc 3/4 ton and want
To put the biggest tires on it without lifting
it. Any ideas? Thanks Zack from Canada.

 

[crazy4offroad]

33" is about the max, and if you wheel it they will probably rub.

 

[Boondock]

33". I've got them on mine. That's without lift or cutting.

 

[Zack]

33x12.5?

 

[Boondock]

Yep.

 

[Zack]

Thanks ! Another question what mufflers
Are you running . I want it loud I'm thinking
Flowmaster 40 series mufflers.