What size and kind of rims do I need for my 1991 D-350?

I think I have 16"x6" on it now and I want to keep the stock size tire,

Is an Alcoa a Lug Centric wheel or are only the steel Budd rims lug centric?

Also is the bolt pattern inch or metric?

Sorry for all the questions, I want to change the rims but I do not know what I want yet,

Wonder how the stock Budd wheel would look chromed?

Jim

 

Lugs are 8x6.5 inch pattern.

Think the center bore is 4.65 to 4.68 for Dodge? Ford is larger at 4.77 or something then Chevy is much smaller and doesn't fit on. Ford after '97 ish went to a metric bolt pattern but the older ones are the same as Dodge.

Think a lot of people run the old Ford alcoas. I thought I had a set from my brother but didn't realize Alcoa apparently makes them for a Chevy hub too as they don't even fit on the bolts around the hub. So back to simulators for me.

 

Yes, 8 x 6.5" stud pattern and 16"x6" is the stock size.

My Alcoas are a stock size replacement, 16"x6" and seem to be lug-centric on their own since I'm using the 2-piece Securex lug nuts. The wheel's stud pattern and stud hole size are a perfect match and don't require centering like the factory steels.

 

I also ran the Ford alcoas and they fit fine. I just ordered a set of the Ion alloys 167 wheels from summit. Haven't had the chance to install them yet but should soon. Hopefully the correct lug nuts will keep everything centered and riding smooth.

 

If your buying new rims pre 88 chevy have the correct opening. Most after market rims center off the studs.

Now the coined inner rims will be an issue. You can't by a set of after market rims with counter sinks to clear the coins. An hour or so with a die grinder and you can make reliefs to clear the coins.


I have a set of American Racing 058's. I bought them for a 72 chevy C30 about 2 decades ago. I moved them onto my 1st gen when I bought it in 98. I just did some die grinder work to clear the coins. No issues with that.

Make sure to recheck the lug torque after a week of driving. Every time I have had the rims off or a shop has. I have had to retighten them.

 

I forgot to add something about after market dually rims. They are only polished on one side. That means to do a tire rotation you will need all 6 rims dismounted.

In my area it is $75 to get a full tire rotation. If you rotate every 5 to 10K. That adds up pretty fast.

 

Did you modify the coins or modify the backside of the new rims? Can you just grind the coins flat on the inners so the new rims mount flush against it? I dont really want to modify my nice new rims.

 

That is what I did to mine, flattened out the surface of the inside rim with a die grinder.

Jim

 

Ah. Good to know. I am going to look at the backside of the new rims and see if they are "pre-clearanced" for the coins. If not I will be grinding the inner steel rims and putting a nice coat of paint on them (they need paint anyways).

 

Checked out my new rims and they have a relief already cut into the back of the rim around the lug holes. Ill report back once I put them on the truck on any mounting/centering issues I may have.