Does 33x12.50R15 fit at the rear of a 2wd C10 with stock suspension, stock 8x15 wheels

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Logbed

Full Access Member
Joined
May 31, 2022
Posts
58
Reaction score
44
Location
Europe
First Name
Caleb
Truck Year
1985
Truck Model
C10 Silverado Longbed
Engine Size
334
The truck is currently on 8x15 stock wheels and 31x10.50R15 tires which have ample space around them and I'll be installing 1" lift up front to level the stance a bit. I was also planning to go 32x11.50R15 tires all around, but as they are a bit rare and expensive so I figured an option: 32s up front and 33x12.50R15 at the rear as there would be plenty of cheap used 33s available to burn out ;)
The front-rear tire size difference would eat almost a half of my leveling, a bit less if I get used tires at the rear, but it should still be fine. There seems to be plenty of space at the rear but does anyone has pics or experience of 33s at the rear?

(for those wondering what the hell I'm trippin', my style inspiration is here: https://bangshift.com/general-news/...0-baja-truck-big-block-power-and-big-history/ )
 

Grit dog

Full Access Member
Joined
May 18, 2020
Posts
7,462
Reaction score
13,322
Location
Auburn, Washington
First Name
Todd
Truck Year
1986, 1977
Truck Model
K20, C10
Engine Size
454, 350
I think there’s room, especially if it’s a F44 truck with the additional leafs still in tact.
But you have the truck, so take some measurements. That’s free and easy. Find your current size in width and height. Compare to 33s and see how much clearance there is or isn’t.
 

Originalthor

Full Access Member
Joined
Aug 22, 2021
Posts
1,091
Reaction score
3,677
Location
Saskatoon Saskatchewan
First Name
Scott
Truck Year
1989
Truck Model
Suburban
Engine Size
5.7
I just read that page the other day. Looks like a fun truck to drive.

This picture is on a suburban with 10 inch rims but I would say you could stuff a 33 in there with no modification.
You must be registered for see images attach
You must be registered for see images attach
 

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
31,199
Reaction score
30,635
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
33's will fit the rear without issue.

The 32x11's should be fine up front as well. Years ago I had a 2wd K5 with the same size on 15x8" rims.
 

mlsceo

Full Access Member
Joined
Dec 29, 2022
Posts
486
Reaction score
1,422
Location
Kingsburg California
First Name
Manuel
Truck Year
1977
Truck Model
c10
Engine Size
350
Mickey Thompson built a kick ass truck. Great look to it.
 

Logbed

Full Access Member
Joined
May 31, 2022
Posts
58
Reaction score
44
Location
Europe
First Name
Caleb
Truck Year
1985
Truck Model
C10 Silverado Longbed
Engine Size
334
Its garage season here, I have not yet swapped the tires. I installed the lift up front, ended up lifting 1,5 inches. Still not made up my mind on the 33's at the rear. One thing crossed my mind: are 33" BFG Mud Terrains risky for my GM 10 bolt 8.5 differential with 4.10 gears and POWERTRAX® Grip LS "posi" lock? The engine is +400hp and I guess some burnouts are going to happen
 

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
31,199
Reaction score
30,635
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
400+hp and burnouts is always risky with the 10 bolt rear, no matter the tire size. As long as it doesn't wheel hop or do anything else that would create high shock loads, you *should* be fine.
 

Forum statistics

Threads
44,896
Posts
970,938
Members
37,743
Latest member
GRedschoen
Top