Rear hub with 928 bearing and increased offset, 928 Hybrid trailing arm, 944 brakes, extended hub offset, parking brak Options

[Wilhelm]

Few pics of a project I'm working on to break up the misery or paint, bondo and rust removal on my V-8 SBC conversion. I'm going to do the sheridan body work on my car and found these wheels which I liked.




The problem is the wheels are 10 inches wide with an offset of 2 inches. In searching the web site it seems that most people with this combo have gone with 3" spacers. This seemed like it would put a lot of force on the bearing and I still would not have many other rear brake options. So.... I found some rear 928 hubs on ebay. the bearings are much larger: 85mm diameter and 47mm wide (versus stock 75mm diameter x 37mm long) and this would provide me with other 5 lug rear brake options. So off to the barn.



First, put a piece of 5 inch 1.25 inch wall DOM(Drawn Over Mandrel steel tubing) in the lathe.

[andys]

Wilhelm,

Just catching up after 5 days in Puerto Vallarta, Mexico, thus the late post.

Nice work. Good to see someone thinking outside-the-box. I curious why you chose the 928 bearing? Most think the 914 bearing is more than adequate, and the 911 bearing beyond most needs.

I went with the 911 bearing mostly because it matched the late 911 axles, and I also moved the bearing further outboard in order to fit my 6 speed transaxle. Much like your work, here are a couple of photos of what I did (BTW, I can appreciate the amount of work that goes into this kind of thing). I fabricated a custom trailing arm.

Andys

[ClayPerrine]

Wilhelm,

Just catching up after 5 days in Puerto Vallarta, Mexico, thus the late post.

Nice work. Good to see someone thinking outside-the-box. I curious why you chose the 928 bearing? Most think the 914 bearing is more than adequate, and the 911 bearing beyond most needs.

I went with the 911 bearing mostly because it matched the late 911 axles, and I also moved the bearing further outboard in order to fit my 6 speed transaxle. Much like your work, here are a couple of photos of what I did (BTW, I can appreciate the amount of work that goes into this kind of thing). I fabricated a custom trailing arm.

Andys

From experience...


Junk the Wilwood spot caliper. If you set the brake when the rotor is hot, after it cools it won't release. You will end up beating the shit out of the caliper trying to get the park brake off.

[burton73]

Wilhelm,

Just catching up after 5 days in Puerto Vallarta, Mexico, thus the late post.

Nice work. Good to see someone thinking outside-the-box. I curious why you chose the 928 bearing? Most think the 914 bearing is more than adequate, and the 911 bearing beyond most needs.

I went with the 911 bearing mostly because it matched the late 911 axles, and I also moved the bearing further outboard in order to fit my 6 speed transaxle. Much like your work, here are a couple of photos of what I did (BTW, I can appreciate the amount of work that goes into this kind of thing). I fabricated a custom trailing arm.

Andys

From experience...


Junk the Wilwood spot caliper. If you set the brake when the rotor is hot, after it cools it won't release. You will end up beating the shit out of the caliper trying to get the park brake off.

Hi Clay,

I just ordered a set of Wilwood Mechanical spot calipers to make parking brakes for my V8 car that will have Boxster brakes with Rich Johnston adapters. Just to be sure I called Marty today at MSDS that runs them on his Turbo 914-6 car and they did a second car and he says they are perfect. I went over this with Eric Shea for a long time on the phone and he said as far as this thread went, it made no sense as the 914 brakes are really set up to be mechanical E calipers when we pull the handle.

Is this a red-hot racecar brake problem? Can it be the pads?

The only discontinued item on the web was a different number that the 120-2281,
120-2280.

Bob

[ClayPerrine]

Wilhelm,

Just catching up after 5 days in Puerto Vallarta, Mexico, thus the late post.

Nice work. Good to see someone thinking outside-the-box. I curious why you chose the 928 bearing? Most think the 914 bearing is more than adequate, and the 911 bearing beyond most needs.

I went with the 911 bearing mostly because it matched the late 911 axles, and I also moved the bearing further outboard in order to fit my 6 speed transaxle. Much like your work, here are a couple of photos of what I did (BTW, I can appreciate the amount of work that goes into this kind of thing). I fabricated a custom trailing arm.

Andys

From experience...


Junk the Wilwood spot caliper. If you set the brake when the rotor is hot, after it cools it won't release. You will end up beating the shit out of the caliper trying to get the park brake off.

Hi Clay,

I just ordered a set of Wilwood Mechanical spot calipers to make parking brakes for my V8 car that will have Boxster brakes with Rich Johnston adapters. Just to be sure I called Marty today at MSDS that runs them on his Turbo 914-6 car and they did a second car and he says they are perfect. I went over this with Eric Shea for a long time on the phone and he said as far as this thread went, it made no sense as the 914 brakes are really set up to be mechanical E calipers when we pull the handle.

Is this a red-hot racecar brake problem? Can it be the pads?

The only discontinued item on the web was a different number that the 120-2281,
120-2280.

Bob

Talk to Rich Johnson, and have him tell you about Mike Floyd's car. It was the one with the stuck park brake that got beat with a hammer to make it release.