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Modifying Standard Trailing Arm Brackets For Camber


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#1 Hunter2

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Posted 05 April 2022 - 04:12 AM

It has been a 25 years...and I don't have my notes re modifying a standard trailing arm bracket to allow camber adjustment.

 

However, if I elongate the pin hole upwards 60 thou, will this be close to 1 deg. negative camber?

 

I also plan to add a 1/4" lock bolt - big washer for pin end - and welded horizontal plate with 1/4" through hole for the lock bolt.

 

Old school but it worked.



#2 Indigo

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Posted 05 April 2022 - 01:24 PM

The end result will depend on how much negative or positive camber you have to start with.

My simple trigonometry tells me you need to elongate the hole by about 3.5mm to change the camber by 1 degree.

This is based on a guestimated length of the trailing arm shaft.



#3 imack

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Posted 05 April 2022 - 05:03 PM

From David Vizard's good old 'how to modify your mini' book.
340 thou to get a 2 degree camber change.
So just over 4.0mm per degree.

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#4 Spider

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Posted 06 April 2022 - 12:46 AM

This is from the factory;-

4LdWim9.jpg

 

while this discusses Toe angles, it follows that since these are added behind the outer bracket, moving the hole up or down in the bracket will have the same changes in angle but to the Camber.



#5 GraemeC

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Posted 06 April 2022 - 11:24 AM

Shame they were a bit lacking using the decimal point in the metric measurements!!!



#6 KTS

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Posted 06 April 2022 - 11:33 AM

i just took that as yet another example of how devalued the imperial system has become; back then an inch was worth 250mm, now it's only worth 25...


Edited by KTS, 06 April 2022 - 11:34 AM.


#7 Spider

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Posted 06 April 2022 - 06:50 PM

Shame they were a bit lacking using the decimal point in the metric measurements!!!

 

That's from our local factory workshop manual, it is full of errors in it's metric numbers, like this, decimal points missing or in the wrong spot or just the wrong number altogether ! This came about as the manual is - rightly - imperial, then in 1974 legislation was passed along the lines that the metric system had to be used for all measurements, the imperial numbers were 'optional', so it would seem someone or a committee when through the manual, adding the metric numbers. I just automatically tend to ignore them.






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