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Old 11-27-2018, 10:13 PM   #1
rob7233
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Join Date: Nov 2018
Location: Sanford
Posts: 1
97 C1500 Coil Spring Selection Help

I am in the process of selecting parts for a total front end rebuild for my 1997 C1500 - GMC Sierra, Reg sized Cab w/5.7L 350 engine plus AC. Also, since I often pull a 4500 lb trailer with it, I have added HD rear leaf springs and Load Lifter 5000 air bags to help.

A VIN search gave me the original Coil Spring OEM parts# 15528980 but gave no specs except (4685 lbs) to which I was told by a dealer parts guy "they measured them different back then" ?? Otherwise, I searched online and have found no direct recommended interchange replacement.

@ Rockauto.com the 2 variable coil spring options I'm considering are:

1) ACDelco Professional 45H1057 (Load Rate=2170.00) The relaxed and compressed lengths between the two choices are only 1/4" from each other.

2) Moog CC650 (Load-lbs 2325.00 it also gives the Spring Rate=1025.00)


I've been told either should be fine but I was hoping someone here might have some direct experience or offer information that could help me make a comfortable final decision. Thanks in advance for your help...
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