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Z55 coil spring options #5218821 09/21/19 12:28 PM
Joined: Feb 2011
Posts: 7,456
LeakySeals Offline OP
OP Offline
Joined: Feb 2011
Posts: 7,456
My Escalade has a broken rear coil spring. It has the Z55 auto-leveling suspension. The rear air shocks and compressor have been replaced recently so I'd like to keep it rather than do a conversion. But they don't sell the Z55 coil springs anymore. Just conversion springs which are different. wondering if anyone has advice and if there is any information about z55 springs. Like what the height is relaxed and with weight and how much weight does spring support I can't find anything OEM just aftermarket info. Any information would be helpful thank you

06 Escalade 6.0L LQ9 AWD 170k M1 5w30
03 Maxima 3.5L 170k Maxlife HM 10w30
05 Malibu Classic 2.2 111k M1 5w30
06 Altima 2.5L 167k unk
Re: Z55 coil spring options [Re: LeakySeals] #5218843 09/21/19 12:55 PM
Joined: Oct 2014
Posts: 14,184
CT8 Offline
Joined: Oct 2014
Posts: 14,184
I can't help with the springs bit I would suggest replace both springs.

2015 F150 2.7
2018 F350 6.2
Re: Z55 coil spring options [Re: LeakySeals] #5219098 09/21/19 06:50 PM
Joined: Nov 2006
Posts: 22,581
Trav Offline
Joined: Nov 2006
Posts: 22,581
Call Eaton spring, they may be able to make them. Phone: 1 (313) 963-3839

ASE L1, Master. Deutsch Meisterbrief.
Re: Z55 coil spring options [Re: LeakySeals] #5219158 09/21/19 07:48 PM
Joined: Mar 2016
Posts: 84
alchargo Offline
Joined: Mar 2016
Posts: 84
I would look into GM part # 15182556 or 15182558 . It's the rear coil spring for the Tahoe/Yukon with Z55 suspension. They share the same shocks so the spring has to be close. In fact, some places online list 15182556 as compatible with the Escalade Z55. If those part numbers are discontinued, I apologize, as multiple online sources said they were still available.

Last edited by alchargo; 09/21/19 07:52 PM.
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