Outer Limits 4x4 Board

How hard is it to fit springs off a later model FJ40 to an earlier model FJ40, as the hole is bigger.

Is it the same size bolt but bigger bush? or is it bigger bolt and bush Outer diameter?

you need to change the spring hanger on the chassi as the late modle springs are biggger and slightly wider they just wont fit


not a real easy task trying to find someone that will chop them off a chassi is the hard task

I have 75's springs and they fitted in the hanger no worries and they are wider so i dont see you havin an issue. give it a go dude.

early models mave smaller diameter bushes as well as the pin are smaller in diameter

I thought the width of the springs are all the same. My early 40 springs are the same width as the 60 springs I have here. Its only the spring eye diameter and pin size thats different. I found some bushes that are the same eye size as the later 40 and 60 series eye but still use the same pin size as the early 40. The only thing is that you have to shave the "head" of the bush as they are far too thick to squeeze into the hanger. I think the bushes are off some sort of ford/mazda. I'll post up a part number and pics when I get a chance. I'm fitting the 60 springs to my early 40 as we speak.

I have resize a set of bushes so that an early model bush will acept the larger size pin
the bigest problem i found was that the bushes flogged out realy quickly

it is easer to refit later model spring mounts to your chasis and use 60 series bushes and pins

STIKA wrote:I have resize a set of bushes so that an early model bush will acept the larger size pin
the bigest problem i found was that the bushes flogged out realy quickly

it is easer to refit later model spring mounts to your chasis and use 60 series bushes and pins

Yeah if you can locate later model mounts easily enough. I located some interstate but was in too much of a hurry to put it back together to wait for them.

Ok, so the pics are blurry as hell but here ya go anyway.

The part number for the bushes I used is S233 (Mackay). It seems they are listed for rear springs on Falcon/Fairlane XR/XA/ZA/ZF 1966/73.

So in the pics they appear left to right as standard 60 bush, standard early 40 bush, shaved falcon/fairlane bush and standard falcon/fairlane bush.





As Stika said there may be an issue with longevity, I'll have to see. But they are a cheap option to get me on the road and if they prove to be an issue I'll just have to go for later hangers and shackle mounts.

thanks for your help guys i might have to try a few things out and see how it goes.

they are not cheap but bigballsmotorsports sells all sorts of weld on hangers on their site.
have a look.

I didnt find any that suit the offset hanger that 40's use.

i found that when i was performing an upgrade to my 40, (soa,spring flip, shackle reversal, 60 series springs rear, 75 series up front, 60's diffs, 82 body on 77ish chassis) i found the difference between the 'older' bushes and the spring hanger and the 'newer' was substantial..


got rid of the crappy little hangers and got 75 series hangers for the fixed end, (beefier pins) and cut of the other ends hangers from a donor truck..



got the 75's fixed pin mounts from superior engineering..