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-   -   SWB Rear Brake Caliper Bolt Spacing... (http://forums.pelicanparts.com/porsche-911-technical-forum/145944-swb-rear-brake-caliper-bolt-spacing.html)

SprintStar 01-27-2004 04:44 PM

SWB Rear Brake Caliper Bolt Spacing...
 
Hello Guys...

Has anyone retrofitted Boxster brakes to a SWB car? Seems like all the vendors sell are for '69-on.

What is the bolt spacing on the LWB cars? 3"?

What is the bolt spacing on the SWB cars?

Then what is the difference on the SWB cars? What other differences are there such that no one makes an adapter?

Thanks.

Sprint.

Early_S_Man 01-27-2004 05:00 PM

SWB cars used Ate 'L' calipers on the rear which have 2.5" bolt spacing.

SprintStar 01-27-2004 05:41 PM

Quote:

Originally posted by Early_S_Man
SWB cars used Ate 'L' calipers on the rear which have 2.5" bolt spacing.
Thanks Warren! But the setup is otherwise similar? Anything else different save for the shorter arm and smaller bolt spacing?

And just curious. Is 2.5" an exact measurement or an approximation? I thought the Germans are metric? They measure most stuff in mm, right?

Goodnight! :)

Sprint.

Early_S_Man 01-28-2004 02:00 AM

2.5" is an approximation, as are ...

3.0" spacing for Ate 'M' calipers ...

3.5" spacing for Ate 'S' amd 'A' calipers ...

Bill Verburg 01-28-2004 03:30 AM

Quote:

2.5" is an approximation, as are ...3.0" spacing for Ate 'M' calipers ..3.5" spacing for Ate 'S' amd 'A' calipers ....
I beg to differ, I have no knowledge of the "L" calipers and have never even seen one outside of a picture, but "A" and "M" are certainly 3.5" and 3" respectively
Here are the relevent portions of the Ate catalog
http://forums.pelicanparts.com/uploa...1075289069.jpg
http://forums.pelicanparts.com/uploa...1075289104.jpg
dimension "F" was 76.2mm = 3" on "M" and 88.9mm = 3.5" on "A"

Inch measurements were not uncommon on older designs, another example is wheels

SprintStar 01-28-2004 09:16 AM

Quote:

Originally posted by Bill Verburg

dimension "F" was 76.2mm = 3" on "M" and 88.9mm = 3.5" on "A"

Inch measurements were not uncommon on older designs, another example is wheels

Nice chart and example, Bill. Would you happen to have similar info about the L caliper?

Thanks.

Sprint.

Bill Verburg 01-28-2004 11:44 AM

Quote:

Would you happen to have similar info about the L caliper?
No, that was before my time. The 914 guys and early 911 guys are the most common users

SprintStar 01-28-2004 05:22 PM

Quote:

Originally posted by Bill Verburg
No, that was before my time. The 914 guys and early 911 guys are the most common users
Thanks Bill! Anyway, I have a question about SWB brake upgrades for ya.... Was wondering if I should post it here (since it's a SWB thread) or PM ya? Thanks and goodnight.

Sprint.


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