Changing to 4.75" bolt pattern?

[68Stepbed]

OK, I've been looking at different wheel styles for a little over a year now, and every time I find something I really like, it's only available in 5x4.5 or 5x4.75" bolt patterns. I know the reason why is because the 5x5" pattern is specifically for trucks and large GM cars. But most wheel manafacturers won't produce a lightweight aluminum wheel for a "truck" because of load ratings. My truck hauls only a cooler and folding chairs now, so that shouldn't be a problem.

My question is, has anyone ever changed to the smaller bolt pattern on a 67-72 with stock brake and suspension components? Does anyone offer rotors and axles with the car bolt pattern?

Is this even worth trying to do?

[fine69]

The problem is that 4 3/4 wheels don't have a large enough center to accept the truck rotor hub.
There are a couple options though.
The back is easy. Take the hubs off and redrill them. Take the axles out and have a machine shop drill them for you. And machine the center of the axle down a bit. Also to accept different 4 3/4 wheels. I have done this.

Classic parts of America sells a cool conversion kit for this. But you need 64-70 front spindles. Which are easy to get. Here is a link to it.
http://www.classicparts.com/1964-70-...ctinfo/71-977/

I have personally used this kit. I recommend it. Very easy to install.

I wanted to put Chevelle wheels on my 69 short step but ran into the same issue. This kit fixed the problem.

Hope this helps you out.

[68Stepbed]

Would I need to change calipers with that kit or just rotors? Aren't GM car rotors smaller than truck rotors?

[fine69]

At the bottom of that link it tells you what you need to do this.

Here is what it say, i copy and pasted it for you,


Includes new brackets, bearings, hardware and instructions for adapting 1968-72 Chevelle, A-Body GM passenger car, 68-74 Nova or 69 Camaro rotors and 1973-77 Camaro, Chevelle, Monte Carlo passenger calipers and Mounting Pins (not included) to early truck spindles.

[jorgensensc]

I've got dual bolt pattern on my truck ( both 5 on 5 and 5 on 4 3/4). I have a 73+ crossmember with disc brakes on my '68. I have stock 1.25" rotors that are drilled for 5 on 4 3/4 bolt pattern also. The rear axles are new moser (my originals were 6 bolt) that are dual drilled for both 5 on 5 and 5 on 4 3/4 patterns. I couldn't find a shop to redrill and weld my original 6 lug axles for a reasonable price. It was cheaper to buy new axles and bearings. The front drums for a '56 bel air as well as some '73 + vans ( some have a 5 on 4 3/4 bolt pattern) will work out back. I did have to have the font hubs turned by a machine shop to get the right hub diameter to run my bel air steelies and spider caps. Wasn't that hard to do at all.
Shawn