Hey guys doing a wheel swap on an 04 ram from 17" steel chrome to factory 20" alum 5 stars do both wheels use the same lug nuts?

 

Not sure if the taper on the back side is the sme or not, but this will throw your speedometer off a little.

 

Yea i know it's going to the dealer sometime next week to recalibrate the speedo and the guy at the local dealer is not so sure either if they are the same

 

I'm facing the same issue. Have 07 1500 with 8ft bed and want to go from stock 17 steel to dodge 20 alum alloy. also wondering if there will be any problems with pay load, fitment etc

 

Why? You gain nothing but looks but will lose power, fuel economy, any tire sidewall advantage like off road use and your towing capacity decreases by 1000 lbs...

 

By changing from 17"to 20" you lose towing capacity??

 

Yep - up to 1000lbs of it. I found out after buying my truck that this was the case - it's nowhere in my user manual, but when I was told this, I called Dodge and they confirmed it.

Wow, all these guys going to 20" rims and I can't wait to go to 17" aftermarkets. Maybe I can interest someone in my 20's when I take them off. They aren't perfect but not bad shape. Only real issue other than age is some clearcoat overspray got on one of them when I had a ding repaired and now there is a faint layer of brake dust permanently sealed onto it. Probably not permanent if I'd just take the time to figure out how to fix it. But it's so faint, it doesn't even bother me.

 

That's very interesting! Definitely stick with some 17's.

 

Not exactly true. Only to an extent...

It's the overall tire diamater is what reduces the towing capability. Stock 17's have a 31.5" diameter and 20's have 33's.

So, whether you have 17's with 33" rubber or 20's with 33" rubber, they have the same towing capacities.

 

Not according to Dodge, I've had this conversation with an engineer in a chat room. I also had a guide from the insurance underwriters association that insurance companies go by. My cousin is an exec with an insurance company and gave it to me. I'll have to see if I can get her to send me another one and I'll scan and .pdf it.

I know when I checked it, my towing capacity INCREASED with 35" tires and 4.56 gears over my stock 31.5" tires and 3.92 gears. (17" wheels in both cases).

There are other factors besides just tire diameter and it gives all different equipment scenarios, it's actually great reading because you can use it to compare just how much some companies inflate their advertised towing capacities (can you say "TOYOTA", LOL)...


But regardless, if you own a 4x4 and off-road at all (and I'm not talking hard-core, Baja stuff - I mean going through the mud or sand fishing, etc.) and you aren't running as much tire sidewall (smallest wheel to tire size) you can, then you're just being foolish, IMO. I'd be running 15" wheels with my 35" tires if they'd clear the calipers...