Tire and wheel size 91 suburban with a 4/6 drop

[Chevy Steelers]

I've got a 91 sub I plan on dropping with belltech 4/6 drop kit. Wanting to put some torqu thrust II one her, but not sure of offset and how big I can go. Wife wants wide tires! But I don't want to be running on rubber bands! Any help greatly appreciated. Like these wheels on my 67 lowered c10 too!

 

[J Knight]

Well for 15in wheels you can go
15x8 with 4in bs and 245/60/15 tires front
15x10 with 5in bs and 295/50/15 tires rear

20x8.5 with 5.25in bs and 245/45/20 tires front
20x10 with 5.5in bs and 295/40/20 tires rear

 

[Chevy Steelers]

Thanks for the info John

 

[Chevy Steelers]

Well for 15in wheels you can go
15x8 with 4in bs and 245/60/15 tires front
15x10 with 5in bs and 295/50/15 tires rear

20x8.5 with 5.25in bs and 245/45/20 tires front
20x10 with 5.5in bs and 295/40/20 tires rear

John,
Question, do you think any of these size wheels will work? It's what I've found of the wheel I want.
15x8 with -18mm offset and 3.79in bs
15x10 with -44mm offset and 3.77in bs
Or
20x8 with 0 offset and 4.5in bs
20x10 with +6 offset and 5.75in bs

I know the back spacing is a different, that's why I'm asking. Wish it was easier to find out what works. But if you can help greatly appreciated and thanks for your time again!
Gary

 

[J Knight]

15x8 with -18mm offset and 3.79in bs
This should be OK.

15x10 with -44mm offset and 3.77in bs
This will really stick out past the fender and rub. If you really want these wheels you can narrow your rear end 1.25in per side to make them fit with no suspension mods.

20x8 with 0 offset and 4.5in bs
This should be OK.

20x10 with +6 offset and 5.75in bs
This would be OK with a 1/4in thick wheel spacer to keep the back side of the tire from rubbing the inner fender.

Also note that I know how offset is measures but I don't know if there is any brake caliper or brake drum clearance issues due to the offsets.

 

[Chevy Steelers]

Thanks again, I really like the wheels and so does the wife, she's the one I have to please! Lol! Guess might try the 20s unless since they are the closest. Don't like to use wheel spacers but 1/4 in isn't bad. Now to find the same tire to fit front and rear!

 

[J Knight]

You not going to like same size tires on different sized wheels, gunna look ****** IMHO.

 

[Chevy Steelers]

Didn't mean same size, meant same name brand and kind of tire. Don't want two kinds of tires!

 

[J Knight]

Ok...lol....my mistake.

 

[Chevy Steelers]

Wheels and tires

Well for 15in wheels you can go
15x8 with 4in bs and 245/60/15 tires front
15x10 with 5in bs and 295/50/15 tires rear

20x8.5 with 5.25in bs and 245/45/20 tires front
20x10 with 5.5in bs and 295/40/20 tires rear

John, I private messages you, just wondering if you got it? Otherwise I'll send it to you again, on 18 wheels and tires. Thanks, Gary