Shackles.......what are stock size (1 Viewer)

[tls3601]

So I am de-rattling my brothers '76 FJ40. I believe his rig is stock ride height. His front spring shackle measurement center to center is 2 and 3/4 inches. The rear spring shackle measurement center to center is 6 and 1/2 inches. The springs appear stock. Is this a stock size and if not what would fit/work. I want to replace pins and shackles and all bushings-so shocks too with units that are durable and greasable....reccomendations????????????? Thanks

 

[jim land]

stock is 2 3/4" front and rear , maybe the PO used longer rear shackle because the rear spring sag

 

[tls3601]

Any idea where to find a 6.5" center to center rear shackle??

 

[brian]

the scrap dumpster. it will drive better without them that's for sure.

 

[tls3601]

But will my 31" tires clear in the back????? I thought of that too brian.......or just maybe all I need are new bushings for the rear shackles????

 

[Fast Eddy]

The long shackles are there to make up for sagged out springs. You want new springs, or to re-arch the old springs. I had mine done at a good blacksmith/spring shop and they have held up ok over the years.

 

[shawnfj40]

^X3 get rid of the long shackles fix your springs. Its probably not a problem running a 31 at stock height, so long as they are narrow like a 9.50 or so. A 12.50 will almost for sure rub.

 

[shelfboy1]

you can only go about an inch and a half over stock and then the shackle pushes the spring down in the rear of the spring and ruins the spring because all the weight of the truck is shifted to the one end .good luck

 

[tls3601]

All good stuff. Leaning towards going back to stock shackle in back with either re-arced springs or new.

 

[tls3601]

How about a 10.5 wide tire? I believe they are a slight offset

 

[tls3601]

Anyone know about Atlas springs vs Old Man Emu????

 

[Fast Eddy]

How about a 10.5 wide tire? I believe they are a slight offset

I have a bone-stocker that had some 10.5s on it for a while. The uncut fenders are bumped out ever so slightly, but I believe the tires would tuck inside; stock wheels.

 

[Rustic76]

My '76 in my avatar has 31x10.5 on stock wheels and is on factory springs/shackles and has a fair amount of ass end sag. No rubbing under normal driving and light wheeling.

 

[tls3601]

Thanks guys