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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » Rear leaf spring replacement

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    10/31/2018 6:51 AM  #1

    Tony M
    FYI FORD Member

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    From: Lewis Center, OH
    Registered: 4/02/2013
    Posts: 25

    Rear leaf spring replacement

    New acquisition and looking for opinions for replacement rear leafs on a '65 convertible with 289 4bbl with dual exhaust as the car sags on the driver's side.  I've done it before on a '66 coupe using parts vendor kit with good results.  Looking to replace with stock rate springs and regular eyelet.  A couple of buddy's swear Eaton's are better.  Is there any advantage of going through Eaton directly other than cost?   Are Eaton's better?  They are not that much more expensive but when I can get free shipping from the parts vendor total price is a consideration.  I'm willing to pay more for better parts, just need to make sure it's worth it.

    Thanks Tony

     

    10/31/2018 7:32 AM  #2

    almcgee
    I FYI 24-7

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    From: Fairview, Texas
    Registered: 6/01/2013
    Posts: 783

    Re: Rear leaf spring replacement

    IMO, "Grab-A-Track" puts out a very good product.  I would recommend a 4 1/2 leaf instead of stock.  I have them as well as many of my Mustang friends.

    Mustang Steve Bash in Gruene, Texas September29-30, 2023
     

    10/31/2018 9:00 AM  #3

    TKOPerformance
    Hyper FYIFORD ADDICT

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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,832

    Re: Rear leaf spring replacement

    I've always been happy with Eaton over the years.  I've also been happy with the Grab-A-Track springs front Mustangs Plus.  I think in general, so long as you're buying from a good company you'll get good springs.  Price shopping for the lowest possible cost is going to yield lackluster results.

    Most guys seem to like either a 4.5 leaf or 5 leaf spring from the various posts I've read here.

    I would advise using either Del-A-Lum or rubber bushings.  Poly bushings have a bad tendency to squeak over every minor bump and are super annoying. 

     

    10/31/2018 11:36 AM  #4

    Alessandro
    I FYI 24-7

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    From: Modena -Italy
    Registered: 7/08/2016
    Posts: 707

    Re: Rear leaf spring replacement

    i have choosen the average 4 leaf and i am not satisfied . 
    Take a good 4,5  leaf  and they will be the best buy for years .  
    I don't know eaton  but if  they are good as people sayd  , go like this !

     

    10/31/2018 2:55 PM  #5

    BillyC
    I FYI 24-7

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    From: Chesapeake, Va.
    Registered: 4/02/2013
    Posts: 967

    Re: Rear leaf spring replacement

    I've got the Grab-a-Trac 4 1/2 on my 66. Very satisfied with them.

    "anyone that stops learning is old, whether at twenty or eighty"Henry Ford
     

    11/01/2018 12:34 AM  #6

    Tony M
    FYI FORD Member

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    From: Lewis Center, OH
    Registered: 4/02/2013
    Posts: 25

    Re: Rear leaf spring replacement

    Thanks for the input.  What advantage are 4.5 over the stock 4 leaf?  

       •Thread Starter
     

    11/01/2018 2:29 AM  #7

    Alessandro
    I FYI 24-7

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    From: Modena -Italy
    Registered: 7/08/2016
    Posts: 707

    Re: Rear leaf spring replacement

    more leafs , more lbs  ,  but this dont mean you are riding much more stiffer .  a little bit stiffer . 
    Now is a good time to buy good adjustable shocks .

     

    4/21/2019 9:11 AM  #8

    Cab4word67
    Senior 24-7 FYI Addict

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    From: Portland, Ore
    Registered: 4/06/2019
    Posts: 1,166

    Re: Rear leaf spring replacement

    Can anyone tell me the height of there Eaton, or Grab-a-Track springs from center to lip. i have a 65 289 coupe stock with new spring problems

    Slammed Big Blue, ran over the varmints that messed with the Stang. Now all is good in the NW
     

    4/21/2019 10:05 AM  #9

    Bullet Bob
    Senior 24-7 FYI Addict

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    From: Montrose, Colorado
    Registered: 4/01/2013
    Posts: 4,938

    Re: Rear leaf spring replacement

    66 HT with 4.5 leaf Grab-A-Trak springs with a 1" lowering block, a full sized spare on a 17" Cargar, a few tools and spart parts, and a scissor jack in the trunk.  13 1/4" wheel ctr to lip.

    BB

    Last edited by Bullet Bob (4/21/2019 10:06 AM)

    "you get what you pay for, good work isn't cheap, and there are NO free lunches...PERIOD!"
     

    4/21/2019 5:32 PM  #10

    TimC
    I FYI 24-7

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    From: Wheaton, Illinois
    Registered: 4/01/2013
    Posts: 886

    Re: Rear leaf spring replacement

    65FB  4 leaf mid-eye GAT springs.  Installed in 2014 with a few thousand miles on them....14 inches.

     

     

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