66 F-100 Leaf Springs

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Feb 11, 2007 | 08:50 AM

carras

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Tuned

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66 F-100 Leaf Springs

I'm looking at replacing my leaf springs. I found a place local where they sell sets from 1973 and newer. They mention that the '73s are either 2.5" or 3" wide and 5 leaves. Mine are 5 (plus 2 thicker ones at the bottom) and measure 2.25" wide. My questions are: 1. Are the measurements similar to lumber where they round up? 2 Will the '73's fit my 66?

Thanks in advance for the help.

Feb 11, 2007 | 08:52 AM

jeepbut

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Joined: Mar 2005

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From: Corpus Christi, Texas

A local spring shop can make them as soft or as stiff as you would like. Thanks, Lyman.

Feb 11, 2007 | 01:56 PM

carras

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Thanks, I'll try the local spring shop. The reason why I was interested in knowing was because the parts place that I was looking at had them for $95 per side for the 2.5" wide.

Feb 11, 2007 | 02:27 PM

carras

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I did a bit more digging and found in the NPD catalog that the 66 was truly 2.25". I would probably have to change the shackles to use the 2.5"s. Oh well will have to pass on the $95 'deal'
Thanks again

Feb 11, 2007 | 07:10 PM

fast frank 66

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From: Long Island

ask about having yours re-arched

Feb 11, 2007 | 11:46 PM

airharley

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From: Escondido, CA

Re-arching them is a possibility as long as there isn't too much wear between the leafs. My rear leafs, which I think are the original ones, have a .040 deep spots worn into them from the suspension moving around the last 40 or so years. I did find this site that sells them for $109-114. Just be sure to measure the length of the springs in front and behind the spring perch to get the right ones. I am also unsure if it's just the primary or the whole leaf stack. The price would suggest it is only main leaf though.

http://leafspringstacks.generalspringkc.com/ford.html

http://leafspringstacks.generalspringkc.com/ford.html

Feb 12, 2007 | 01:05 AM

NumberDummy

Ford Parts Specialist

Joined: Nov 2006

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From: Simi Valley, CA

5560 F100

1965/72 F100 2WD Rear Springs (as originally equipped)

1965/69: 5 Leaf: C5TZ-5560-A .. Width: 2 1/4" / Depth: 1 5/8"
1968/72: 5 Leaf: C8TZ-5560-A .. Width: 2 1/4" / Depth: 2"

1966/69: 6 Leaf: C5TZ-5560-N .. Width: 2 1/4" / Depth: 1 15/16"
1968/72: 6 Leaf: C8TZ-5560-C .. Width: 2 1/4" / Depth: 1 23/32"

1965/69: 9 Leaf: C5TZ-5560-D .. Width: 2 1/4" / Depth: 2 19/32"

Wax inserts and liners are available for all rear leafs.

Last edited by NumberDummy; Feb 12, 2007 at 01:23 AM.

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Feb 13, 2007 | 10:20 AM

BikerDude

Junior User

Joined: Jan 2007

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Eaton Springs

Check out www. eatonsprings.com They make springs for a living and can make them in whatever capacity you need, standard or reverse eye, lowered, ect. Prices seem fair as well to me for a quality product. When I replace mine I'm going with them.