truck has 20" stock - going to 18" aftermarket?

Reply Subscribe

Thread Tools

Search this Thread

04-03-2012, 04:52 PM

BillK

Senior Member

Thread Starter

Join Date: Sep 2011

Location: Pittsburgh, PA

Posts: 480

Likes: 6

Received 2 Likes on 2 Posts

truck has 20" stock - going to 18" aftermarket?

So if I decide to get new aftermarket wheels and tires - what are the implications if I go down to 18" from the 20s it came with? I'm assuming the dealer needs to change something in the computer?

Reply Like

04-04-2012, 11:57 AM

PawPaw

Senior Member

Join Date: Oct 2008

Location: Lockport, Louisiana

Posts: 8,251

Likes: 616

Received 752 Likes on 623 Posts

Quote:

Originally Posted by BillK

So if I decide to get new aftermarket wheels and tires - what are the implications if I go down to 18" from the 20s it came with? I'm assuming the dealer needs to change something in the computer?

The tire diameter is what makes the difference, not the wheel. The taller you go the more the speedometer will be off.

Reply Like

04-04-2012, 01:27 PM

5111

Senior Member

Join Date: Oct 2011

Location: DFW, Texas

Posts: 233

Likes: 2

Received 10 Likes on 9 Posts

Quote:

Originally Posted by BillK

So if I decide to get new aftermarket wheels and tires - what are the implications if I go down to 18" from the 20s it came with? I'm assuming the dealer needs to change something in the computer?

Just get the same diameter tire. I think that 275/65/18 is the same as your stock 20s.

Reply Like

Reply Subscribe

Reply Share

First
Prev
1 / 1
Next
Last