[Healeys] BN1/BN2 rear springs vs BN4 and later

[gradea1 at charter.net]

Richard-section L/9 in 100 workshop manual describes the springs and
their differences. There were three types- A,B & C with the C being
used on the later cars up to BJ7-8. They go from neg camber to pos and
back to neg, but the double loop eye is the most important feature.
FYI, I had springs rebuilt at the shop in Portland, but be aware that
the original thickness (.055, I believe) shackle is no longer
available and they now use .066. This stack may be too strong for
Healeys. and changes the stiffness rate and ride height. I kept my
original main leaf, and had them rebuild the balance with the thicker,
so it still fit the clamps and has a good ride height.
These old cars had materials that just don't exist today, so you have
to be careful what you replace parts with...have seen many issues with
"exact replacement" items and Moss is at the top of the list! 
Remember, Austin Design Department were real penny pinchers and
specified the minimum whenever they could. Regards, Hank

	-----------------------------------------From: "richard mayor via
Healeys" 
To: "healeys"
Cc: 
Sent: Monday July 12 2021 6:10:01PM
Subject: [Healeys] BN1/BN2 rear springs vs BN4 and later

 What is the difference in rear springs between BN1/BN2 and the later
cars. Moss wants $30 more per spring for the later springs. That's
$149 vs $119. Different length? Different camber?

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