19.5" GM 8 Bolt Rims??

[Marty1]

I need help from you wheel experts... .

I have a set of 19. 5" GM 8 bolt rims like what comes on the P30 vans, the tow trucks & lots of RV's.

They have the same 8 bolt/6 1/2" bolt circle as our Dodges. I believe the hole for the hub is 4. 5" which I believe is slightly smaller than our rims.

Is there any reason I can't machine the hole for the hub to that of our Dodge rims & then I'd have 19. 5" rims I could run on my 05 DRW without any adapters?

Could it be that simple?

 

[Gypsyman]

According to the Rickson site we have a 4-7/8" bore. If these do infact have a smaller bore you could REALLY be on to something! It seems to me that while I was reading all the old 19. 5 threads that someone had tried a set of these and the bore was larger than ours. Could you measure the bores and post back asap? I've been searching for an alternative high and low with no luck. Looking forward to hearing about the bore dimensions...



Richard

 

[XJSuperman]

Yes please DETAILS!

 

[Bertram65]

Seeing as the duallys are hub centric the machining of the center bore would have to be dead on, the hub area on the wheel is usually turned out and slightly thicker on steel wheels, I would think if you machine it larger you would lose that and possibly make the wheel weaker.

 

[DPelletier]

Seeing as the duallys are hub centric the machining of the center bore would have to be dead on, the hub area on the wheel is usually turned out and slightly thicker on steel wheels, I would think if you machine it larger you would lose that and possibly make the wheel weaker.

Yeah, I see what you're saying. What if you had a machine shop drill the hole out larger, weld in a thicker blank and then machine out the centre. For the cost savings over Ricksons, you could afford a little machine shop work. Just a thought.



Dave

 

[Marty1]

The 19. 5's I have are off a 1980 GM P30 van. (Frito Lay truck)

The hole for the hub is 4. 567" & the lip of the rim is not turned out... it has like a doubler ring... I can post pictures if you want. The hole in or Dodge rims according to the site I was reading says they should be 4. 773.

It would be very easy to put these on a lathe & turn them to 4. 773 or 4. 875 if that's what they measure out at.

There are several companies that sell the bolt on style liners & I can't see why the stock center cap can't still be used since it attaches to the lug nuts.

Pretty neat idea hey? Oo.

 

[Gypsyman]

If you get a chance could you please go ahead and post a picture. I can't seem to find these wheels through any of my steel wheel sources? Strange...





Richard

 

[Marty1]

If you get a chance could you please go ahead and post a picture. I can't seem to find these wheels through any of my steel wheel sources? Strange...

Richard,

Here's 3 pictures for you. They must be available but I was just searching for Simulators for them & they list P30 van's as having 5 bolt front rims & 10 bolt rears? As you can see this isn't the case with this one.

#ad

 

[Marty1]

See for me it's not a cost issue... I'd buy Alcoa's if I thought they were the answer but I just don't want the tires to stick beyond the fenders & I'm not really a fan of adapters.

If these will work we could run 35" tires on our duallies with a bone stock look, 50% heavier carrying capacity & tires that will run well over 100K miles.

I bet the RV guys stock these rims?

 

[Marty1]

Great news for you guys if you want 19. 5's!

I did some PI work & you can get these rims either through GM, part #15963341 or you can get them through the wheel manufacturer Accuride.

Here's the Webpage for them-Accuride 19. 5" GM Rims

Accuride is a huge manufacturer that only sells to distributors but I called & they are distributed by Les Schwab around here. I called Les Schwab & they gave me a price of $122. 91 per rim. (Accuride part #29015)

They started out at $165 but I told them I need 36 of them... of course I'd want to try 6 first. :-laf

Hope this helps!

 

[Gypsyman]

Thanks for the PI work Marty! I missed that on my first pass thru thier site. Time to find a used one and head to the machine shop. Tires are fading fast!



Richard

 

[InThinAir]

I sure would like to have me some 19. 5" But am I reading the specs on thoses rims correctly. Max load @ 80PSI is 2540 LBS!!! isn't that less than stock? Please tell me I am wrong?



---Doug

 

[DPelletier]

I sure would like to have me some 19. 5" But am I reading the specs on thoses rims correctly. Max load @ 80PSI is 2540 LBS!!! isn't that less than stock? Please tell me I am wrong?



---Doug

Doug, I'm not sure what the stock 17" steel wheels are rated at but 2540 x 6 = 15,240 lbs or 3240 lbs more than the 12,000 lbs GVWR of my dually.



Dave

 

[InThinAir]

You know what is kinda interesting is that these Accurides match exactly the style and spec, except for the bore, as the Rickson 19. 5x6, they are $192 a piece. I wonder if Rickson doesn't make the 6" rims, they just bore them out??? for and additional 30 bucks a piece? Maybe we can get Rickson to make us some 4. 78" bore 6" for a competitive price? Then we don't have to worry about finding a good shop to do it?



---Doug

 

[Marty1]

Les Schwab quoted me $122 each for the Accurides.

I saw the 2450 weight but if you see how heavy these rims are I'm not just sure why.

That being said I can't imagine having more than a 9800lb load in the back of my truck!

 

[InThinAir]

It is the 5k on the front that I worry about.



I don't have a Les Schwab in my area. But did they say they could get Black powder coat like the accuride catalog indicates?



Also I bet that the rickson SS simulators would be a perfect fit



I need to find someplace around Denver that might sell the Accurides. What kind of place were you thinking for increasing the Bore?



---Doug

 

[Marty1]

Doug,

I have a Shipyard machine shop here with big lathes at my disposal but any machine shop can do this for you in less than an hour.

 

[InThinAir]

Made a few calls and a place in town here has the wheels in stock, and I can have the bore increased for $25 a wheels. They want $175 for the Rims. That makes the Rickson Deal a better Deal for me. Sales tax of the whole deal equals about the cost of shipping. And I do believe that the tires are tough to get right, so I think that the Rickson deal is a little better because they ensure they are balance perfectly before they leave their shop. Still a lot of Money.



---Doug

 

[Marty1]

Doug,

Do you know what Rickson charge for their rims & how wide are they?

 

[InThinAir]

They are same specs and size as the Accurides except they Powder Coat them Black and have the correct bore. So they are 19. 5"x6" 8H 6. 5" 4. 78" Bore. They are $192. They also have wider and Alums for More $$$



---Doug