60 Springs on a 40? (1 Viewer)

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Jan 25, 2010
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I am planning on installing a set of REAR FJ60 springs on the FRONT of my FJ40 and I was wondering if anyone could give me a measurement from eyelet to eyelet of a compressed (ride height) REAR spring. HAs anyone done this? Is it difficult? Thanks for any input.
 
Joined
Jan 25, 2010
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V8 in the front and I wanted to get a longer spring hopefully allowing more flex. I will have FJ60 springs in the back as well.
 

klinetime574

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Jul 23, 2006
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Chicagoland, IL
 
 
Aren't 40 springs narrower than 60 springs? Or am I dreaming?

A V8 should be lighter than an F motor. Weight really won't matter that much.

Are you building a rock crawler?
 
Joined
Sep 28, 2002
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Kamloops, BC Canada
 
 
 
 
They work great! You will have to move the rear mount back, and perhaps the front mount forward a touch. You may also have to re-drill the pin location on the perch.

Great mod, gives a more comfortable ride and somewhat more travel and articulation. I did this about 15 years ago on my BJ42 - and both sets got swapped out for 60 series rears.

I don't remember what the measurements were, but it can fit with just a bit of work. You will want to run updated mounts on the frame if your 40 is older than 1981.


~John
 

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