OEM HD Springs vs. AFCO XHD Springs - '72 B
#1137507
12/17/11 01:30 AM
12/17/11 01:30 AM
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Joined: Jan 2003
Posts: 1,120 MassHole Central
rtman
OP
super stock
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OP
super stock
Joined: Jan 2003
Posts: 1,120
MassHole Central
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Just put AFCO XHD springs on now, car sits high in rear (too high to my eye). Will MP OEM HD springs lower the rear end?
Last edited by rtman; 12/17/11 01:34 AM.
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Re: OEM HD Springs vs. AFCO XHD Springs - '72 B
[Re: sixpack4spd]
#1137510
12/17/11 01:58 AM
12/17/11 01:58 AM
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Joined: Dec 2007
Posts: 18,157 Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
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Quote:
Yuck, and I thought mine sat too high. Did you tighten everything up with the car in the air? You should put it together with the bolts loose (on the springs and shackles) and don't tighten them up until the car is on the ground. Sometimes the rubber bushings will bind and make the car sit higher than it should. Have you driven the car with the springs on it?
Just what I was going to post ....I had the same issue upon XHD installs, too high, but do as listed above and take it out for some driving time it will settle down, might take a few miles of suspenion rebounding to settle them out, the XHD in my Charger came down about 1 1/2" after a week or so
Mike
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Re: OEM HD Springs vs. AFCO XHD Springs - '72 B
[Re: rtman]
#1137511
12/17/11 02:07 AM
12/17/11 02:07 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Like the others say...tighten everything up while its at curb height... also the thing with HD springs is, it seems like all they do is put more arch in them instead of making them with a higher pounds per inch of travel
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Re: OEM HD Springs vs. AFCO XHD Springs - '72 B
[Re: rtman]
#1137515
12/17/11 04:54 PM
12/17/11 04:54 PM
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Joined: Apr 2008
Posts: 1,285 Pacific NW USA
CompSyn
pro stock
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pro stock
Joined: Apr 2008
Posts: 1,285
Pacific NW USA
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Quote:
These are AFCO 20231XHD. I drove it in with a used set of springs I bought off a board member. I may put those back on until I sort this out. I went with the AFCO XHDs when I read a post saying the MP repro OEM springs were Mexican junk and read a post by Dayclona recommending the AFCOs.
Later on I can consider messing with stuff like flipping the hangars or de-archuing the AFCOs. I think Jegs said they had a 5" arch. Can anyone confirm that?
Yep! 5" reference arch, car weight 3100-to-3500lbs, actual arch 6 5/8". Info at THIS LINK
Glad you bring this up. Heard some dissaponted with the MP XHDs. There are many options on the market for reproduction style XHD springs. What's the best rout to go?
New XHD "reporductions":
AFCO - www.afcoracing.com
ESPO - http://www.springsnthings.com
EATON Detroit Spring, Inc. - http://www.eatonsprings.com
Stock XHD spring rebuild kits:
Roger Gibson - http://www.rogergibsonautorestoration.com/index.htm
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Re: OEM HD Springs vs. AFCO XHD Springs - '72 B
[Re: 451Mopar]
#1137519
12/19/11 07:44 PM
12/19/11 07:44 PM
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Joined: Feb 2011
Posts: 43 IN
EricatAFCO
member
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member
Joined: Feb 2011
Posts: 43
IN
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Quote:
If they are still too high after setteling, find a local spring shop to de-arch them.
Guys, I would support the statements that leaf springs will settle some initially. The amount depends on weight of vehicle (on the rear tires) and rate of the spring. I too am not a fan of lowering blocks for street (and strip) use so if the car ends up sitting too high, consider taking to a local spring shop for some TLC to "adjust" the springs to your liking.
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