Eliminating 17" split rims by boring out P30 rims

Started by Real Wrought, August 19, 2020, 04:47 PM

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Real Wrought

What's the best way to eliminate split rims? 

The 17" bias tires have got to go!  What's the cheapest/easiest way to get it done?

I have a 7-wheel set of 8R19.5 tires (zero miles) that I just separated from rims off a 1985 Chevy P30 motorhome with 10x7.25 bolt pattern.  This looks feasible to machine 5 holes in the new rims that will bolt on the OEM hubs. The center bore has to be 5.75" as opposed to the 5.25 center bore on the rims off the P30.  Question- Who has done this successfully and can you tell me about it?  I'm bumping into resistance at machine shops who are reluctant to cut on the rims. 

Oz

Yeah, they're going to be reluctant for obvious reasons.

It's more than just boring out holes.
What about offset?
Brake clearance?
1969 D22, 2 x 1974 D24 Indians, 1977 27' Itasca

Real Wrought

A few years ago it was this forum they gave me the idea. Someone on this firm had said they had done it successfully before. I would love to find those old posts

Oz

Easy to find.

Entered:  17 to 19.5

In the upper right search box and selected "Google" from the drop down.

Read this, skip over the hijacking off to torque questions.

https://www.classicwinnebagos.com/forum/index.php?topic=14593.msg89852#msg89852
1969 D22, 2 x 1974 D24 Indians, 1977 27' Itasca