I saw these massive 285/40/18 tire on a Cobra with a 1" wheel spacer. I want to do the same thing to achieve sort of a monster car type look. Does anyone know if it'll fit on a solid axle GT with a wheel spacer?
You should reconsider using a 40 series tire, especially if you're lowered.
30 or 35 at most.

but i want beefy tires![]()
"Beefy" as in wide, or "beefy" as in tall?
Most refer to a "beefy" tire as a wide tire, such as a 295 width or larger.
I have a 285/35/18 on my 18x10 saleens and they are plenty beefy, plus have plenty of room to spare from the fender. The 40 series will look dumb.
The tires came on the wheels when I bought them used, if it was my choice, I would definitely go wider. 295 at least and 315 would be ideal. The spacer is up to you, if you go with a 285 tire you could probably fit a 1" spacer, but you'd need longer studs.
"beefy" as in wide. I saw a 295/35/18 and it didn't look as "beefy" as a 285/40/18 on a Cobra that was in the same parking lot.
Those look like 315's......do you have a 10" wide rim? If so, fitting them won't be a problem but finding one will be. They'll be hella expensive too unless you have a 17" rim (versus an 18" rim).
mmmm beefy...
315's look great on Mustangs. I run 285/35/18 Goodyear F1 GSD3's and they are great for street but 315's just look great.
heres my 285's
![]()