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2004 RAM SLT 17 to 20 wheels question

1K views 13 replies 11 participants last post by  bmgamble 
#1 ·
On my ram, what sort of change would I see if I went from the 17 factory wheels to 20's.

The truck has 3.92 gears/4.7L and came with 17's from the factory..

26K Miles on her.

Would this hurt or help me in the MPG department? What about performance?

Thanks!
 
#2 ·
you will have some difference in performance and mpg , but the switch is worth it... go for the 20's. :D


bobby, have you ever been in a turkish prison. :D
 
#3 ·
Well, what kind of differences?? Lower MPG and Preformance??

I would have figured a little better mpg but what do I know (more area traveled per rotation) but I am wrong alot.
 
#4 ·
The tire diameter affects MPG, not wheel size. Generally a 20 will have a shorter sidewall, so harsher ride but better handling, but not necessarily a larger diameter tire. A larger diameter tire will adversely affect MPG in town, but increase MPG on the highway (assuming not too much uphill/downhill).

Or am I missing something here.
 
#5 ·
TexasAxMan said:
The tire diameter affects MPG, not wheel size. Generally a 20 will have a shorter sidewall, so harsher ride but better handling, but not necessarily a larger diameter tire. A larger diameter tire will adversely affect MPG in town, but increase MPG on the highway (assuming not too much uphill/downhill).

Or am I missing something here.
Larger wheels weigh more. Takes more ponies to turn heavier wheels.

I'd be willing to bet youll see a difference in 33" 17s vs 33" 20s mpg
 
#6 ·
I did that swap and it required me getting my speedometer reset because it was off by 5mph. They do look nicer in my opinion.
 
#8 ·
DodgeThisRam06 said:
I did that swap and it required me getting my speedometer reset because it was off by 5mph. They do look nicer in my opinion.
i still have yet to get my speedometer reset. i just watch my speed or watch for cops. :D
 
#9 ·
RamKid2005 said:
i still have yet to get my speedometer reset. i just watch my speed or watch for cops. :D
the main reason i had mine reset was because it wasn't recording actual mileage accurately so i never knew what my gas mileage was.
 
#12 ·
allhemi said:
What did it cost you? I need to do it to.
It cost $45 bucks.
 
#13 ·
mrb1986 said:
im lookin to sling my 20s to a good home :D i want the 17s from an offroad package :rck: and some 35s...mmmmm...beefy

Wish I had the offroad wheels now to trade you. Although that would be associating with the enemy (OH). Hook Em!
 
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