Re: IML: Sagging Imperial Rear Ends

[PAUL WENTINK <randalpark@xxxxxxx>]

Remember, the original leaf springs on these models are SUPPOSE to have 
an inverse arch. Obviously, sagging will occur with age and should be 
corrected, but over-correction introduces a completely new set of 
problems into the mix, such as incorrect drive line angle. This causes 
an annoying vibration under acceleration in at least the 1956 through 
1963 cars, and possibly later ones as well.

Paul W.


-----Original Message-----
From: frank.foley@xxxxxxxxxxxx
To: mailing-list@xxxxxxxxxxxxxxxx
Sent: Tue, 26 Feb 2008 8:03 am
Subject: Re: IML: Sagging Imperial Rear Ends



Hi and reading these emails is getting me curious about leaf spring on 
Imperials in general, my 62 is also sagging, which I was blaming on 
shocks.  Does someone like Kanter make OEM leaf springs?  and is the 
rear leafs on Imperials from 57 -66 basically the same?

When leaf springs are correct, the car does handle supprisingly better, 
especially on a large heavy vehicle.

Just thought I would throw that out there,

Thanks,

Frank






Joe Strickland <jwstrick426@xxxxxxxxxx>
Sent by: mailing-list-owner@xxxxxxxxxxxxxxxx
02/26/2008 07:42 AM




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IML: Sagging Imperial Rear Ends






















I agree with one post that said to have new springs made to OEM
specifications.  There are some threads about this topic available on
the club website archives.  Be sure to consult them too.  Many years of
Imperials with rear leaf springs have engineered-in rear end steering
during cornering situations that would be defeated by heavy duty
springs.  I would recommend staying with the original number of leaves
in the springs and keeping the car stock.  If air or spring-assist 
shock
absorbers put too much stress on the shock absorber brackets and cause
them to crack, then in the long run they would not be worth the cost. 
 A
number of our members have stated that they had good results by having
their OEM springs re-arced.  That method is probably less expensive 
than
brand new springs.  Of course you would need to verify that the OEM
springs were not metal fatigued (developing stress cracks) before 
having
them repaired.

Good luck.

Joe


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