Re: my springs are sagging
[Re: mickm]
#2455036
02/21/18 12:36 PM
02/21/18 12:36 PM
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Joined: Jan 2005
Posts: 4,452 Michigan
MarkZ
Worthy
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Worthy
Joined: Jan 2005
Posts: 4,452
Michigan
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Replaced the springs on my car with a set of five leaf spring (stock are four) from JohnR Spring here in Michigan about seven years ago now. Back end hasn't sagged at all since installing them. Think I paid $250 for them and that included new rubber bushings.
Last edited by MarkM; 02/21/18 12:37 PM.
1987 Fifth Avenue - 512/518/D60
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Re: my springs are sagging
[Re: MarkZ]
#2455127
02/21/18 03:55 PM
02/21/18 03:55 PM
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Joined: Jan 2003
Posts: 8,414 Highland, MI.
Sunroofcuda
master
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master
Joined: Jan 2003
Posts: 8,414
Highland, MI.
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Replaced the springs on my car with a set of five leaf spring (stock are four) from JohnR Spring here in Michigan about seven years ago now. Back end hasn't sagged at all since installing them. Think I paid $250 for them and that included new rubber bushings. Now right there is a helluva good tip.^^ Mick, what area are you in in CA? I can probably find a good truck spring shop out your way that can build a GOOD set for you! I've got 3 reps out there that have been in the truck parts industry for many years - they know all the good shops.
No Man With A Good Car Needs To Be Justified
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Re: my springs are sagging
[Re: Sunroofcuda]
#2455166
02/21/18 05:10 PM
02/21/18 05:10 PM
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Joined: Jul 2006
Posts: 4,179 California
mickm
OP
master
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OP
master
Joined: Jul 2006
Posts: 4,179
California
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Replaced the springs on my car with a set of five leaf spring (stock are four) from JohnR Spring here in Michigan about seven years ago now. Back end hasn't sagged at all since installing them. Think I paid $250 for them and that included new rubber bushings. Now right there is a helluva good tip.^^ Mick, what area are you in in CA? I can probably find a good truck spring shop out your way that can build a GOOD set for you! I've got 3 reps out there that have been in the truck parts industry for many years - they know all the good shops. I'm in the SF Bay Area. Bett's is the trucking spring company I've been talking to.
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Re: my springs are sagging
[Re: mickm]
#2455393
02/22/18 01:14 AM
02/22/18 01:14 AM
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Joined: Jan 2003
Posts: 8,414 Highland, MI.
Sunroofcuda
master
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master
Joined: Jan 2003
Posts: 8,414
Highland, MI.
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I e-mailed my rep - stay tuned.............
No Man With A Good Car Needs To Be Justified
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Re: my springs are sagging
[Re: mickm]
#2457863
02/26/18 02:12 PM
02/26/18 02:12 PM
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Joined: Feb 2003
Posts: 21,318 Manitoba, Canada
DaytonaTurbo
Too Many Posts
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Too Many Posts
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
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Previous owner did the springs of my car. I've owned it 15 years, no sag yet. However the back end is quite high so it could sag a little and I would never know! I would agree with 4406bbl's comment on add-a-leaf length. I did them on my jeep and it gave the lift I wanted but a short helper leaf will induce an s-bend in the main leaf if it's already weak. Mick, that spring shop fed you a line.
They effed them springs up for you when they re-arched them.
"Spring steel" is beyond my understanding of Metalurgy, but it's a special metal treatment and tampering with it either by cold bending or hot bending ruins them. IMO there's some truth to it. Leaf springs are made out of a variety of different grades of steel, each with its own heat treating and tempering requirements. A spring shop has no way of knowing what they're working with in terms of both the grade of steel and how close the chemical composition comes to actually meeting the specification for the grade of steel it is supposed to be according to the manufacturer.
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Re: my springs are sagging
[Re: mickm]
#2458027
02/26/18 07:38 PM
02/26/18 07:38 PM
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Joined: Mar 2011
Posts: 3,106 Michigan
A727Tflite
master
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master
Joined: Mar 2011
Posts: 3,106
Michigan
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If I recall correctly - valve springs, coil springs, leaf springs - are all qualified by spring rate.
There may be durability differences between the various metals used.
I recall also that back in the day when Super Stock springs were the go to spring - they were "bulldozed" when new. That means they were over compressed after they were built. This resulted in them taking the proper set (chamber). Sort of reverse "re-arcing".
I'm guessing since these are "Hecho en Mexico" - that's not being done now. So they take a set on your car.
I think the good ones used to be made in Canada.
Back to Kuality Kontrol at Ma Mopar' Performance Parts Group being out to lunch.
EDIT :
I typed in bulldozing springs in Google and it took me to Suspension Specialists - Tech Talk.
So I guess my memory isn't too bad after all.
Last edited by Transman; 02/26/18 07:46 PM.
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Re: my springs are sagging
[Re: A727Tflite]
#2458144
02/26/18 11:06 PM
02/26/18 11:06 PM
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Joined: Apr 2012
Posts: 18,880 -
RSNOMO
Moparts Torchbearer
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Moparts Torchbearer
Joined: Apr 2012
Posts: 18,880
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Back to Kuality Kontrol at Ma Mopar' Performance Parts Group being out to lunch. Bingo...
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Re: my springs are sagging
[Re: RSNOMO]
#2458329
02/27/18 12:52 PM
02/27/18 12:52 PM
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Joined: Jan 2003
Posts: 2,094 central texas
krautrock
top fuel
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top fuel
Joined: Jan 2003
Posts: 2,094
central texas
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Back to Kuality Kontrol at Ma Mopar' Performance Parts Group being out to lunch. Bingo... but the OP bought some nice, high quality Eaton springs and they are the ones sagging.
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Re: my springs are sagging
[Re: krautrock]
#2458897
02/28/18 02:47 PM
02/28/18 02:47 PM
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Joined: Apr 2012
Posts: 18,880 -
RSNOMO
Moparts Torchbearer
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Moparts Torchbearer
Joined: Apr 2012
Posts: 18,880
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Back to Kuality Kontrol at Ma Mopar' Performance Parts Group being out to lunch. Bingo... but the OP bought some nice, high quality Eaton springs and they are the ones sagging. What does that have to do with the MP reference in the post??? What type of steel Eaton spring uses is YTBD... I believe 'mickm' is being steered in the right direction...
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Re: my springs are sagging
[Re: mickm]
#2459005
02/28/18 06:30 PM
02/28/18 06:30 PM
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Joined: Sep 2006
Posts: 1,138 Home of the Bluegrass
MoparJunkie
super stock
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super stock
Joined: Sep 2006
Posts: 1,138
Home of the Bluegrass
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I have a set of ESPO and they've kept me happy with their springs. I will use a set on my 69 Bee also!
"It takes a Mopar to catch a Mopar” 1971 Roadrunner FJ6 Sassy Grass 505"RB, 18 spline 4 speed, and Dana 60 with 3.54 2022 Hellcat Charger Widebody Redeye Jailbreak: Hellraisin with 8 speed auto
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