dma251

I've spent 1 hour searching for the answer to this and still can't find it....

How do I locate the front hanger mounting position on a 2nd gen 4Runner that had coil spring rear suspension?

I have Ruffstuff frenched hangers to install.

Does anyone have any measurements that might help me cut into my frame only once, instead of a couple times? I want the axle to be centered in the wheelwell, because I'm keeping it very low.

91 4Runner

You'll need to find/mark center of the axle in its current configuration. Remove the axle and prep it for reinstall. Then you'll want to mount the springs to the axle and line it up with the original center marks. Also take as many measurements before, during, and after to make sure that the axle is in straight. (before welding it in solid) It's easier to cut a tack than it is to cut a complete weld if you need to readjust...

I'm sure that someone that has done a leaf swap will chime in. If not I'm sure a manufacture like AllPro has a PDF for their installation on 4Runners.

Hope this helps...
Larry

xxxtreme22r

why would you want to leaf spring swap a coiled truck?

dma251

My concern is the spring flattens and lengthens as the vehicle weight is applied, so how do you get an accurate location without the ability to compress the spring during the mockup?

there has got to be someone on here who has done this and gotten their axle centered, that knows the magic number of inches from the body mounts or something like that....

dma251

Are you joking?

xxxtreme22r

Nope not joking. Not too many people have done it to a coiled 4runner. Too many other better options then swapping it to leaf springs. ie I believe a simple swap to LC coils will net as much if not more flex then the chevy springs. And ride 100% better. The only thing you'd have to worry about is the panhard placement.

Here's one: https://www.yotatech.com/forums/f152...ersion-103219/ Not 63's though.

dma251

Hmmm... Yeah, you're right. Nobody does this type of thing...
What was I thinking?




https://www.yotatech.com/forums/f209...2011-a-231826/

https://www.yotatech.com/forums/f152...er-sas-141780/

https://www.yotatech.com/forums/f152...roject-207492/

https://www.yotatech.com/forums/f116...4-inch-189526/

https://www.yotatech.com/forums/f152...around-127949/

https://www.yotatech.com/forums/f152...runner-144538/

xxxtreme22r

Yeah I retracted what I had said about no one doing it, but wouldn't running LC coils be just as good not to mention a heck of alot easier?

waskillywabbit

iTrader: (-1)

Tall coils unload too unpredictably and coilovers too expensive and no room for placement. Leaf springs are cheap, easy and predictable. That 95 4Runner rides and drives awesome.

No trial and error using frenched hangers. I'd ditch that idea IMO and use a traditional hanger and measure and tack in place, test with weight on springs and move if necessary. Shouldn't take more than 2-3 times.

63 chebbies will flex like crazy but they won't ride as well as shorter springs and you'll have more body roll.

Interested to see what you do.

FTR, I'm doing a rear leaf conversion on my 90 4Runner with a SAS 4" springs, rear 5" springs and 3.4 swap etc

:wabbit2:

xxxtreme22r

yeah coilovers are way expensive. Good point abut the coils unloading. I'll be quiet now.

dark_fairytales

You can measure the distance from the inside edge of each eye of the spring. cut a 2x4 to wedge in that space. Use some winch straps, rope, clamps etc. to flatten the spring against the 2x4 and magically your spring is flat. from there take the whole thing your the frame and take your measurements as needed.

happy 63" chevy swap.

cubuff4runner

I usually go with the high tech method of a piece of nonstretching string. Run a piece of string along the leaf and mark the bolt hole and centering pin on the string. Figure out where you are going to want your axle to be on full compression. Put the centering pin string mark on the your perch hole and stretch the string tight with your front hanger on the frame. Line up the hanger hole with your other mark. Just remember as your suspension unloads the axle will move forward.

4Crawler

iTrader: (3)

x2 on the above, just measure the flattened front length of the spring (measure along the arch of the spring, not across the chord) from center of center pin hole to center of front spring eye. Then from center of rear wheel well, measure that far forward, horizontally and find where you hit the frame. That is where the center of the hanger bolt hole goes.

Why does this way work? Simple, then the spring is fully loaded and sitting flat, you likely want to have the rear tire stuffed up into the center of the rear wheel well so you have best clearance.

Tofer

I will get measurements for you tonight. I have 63" Chevys on my 2nd gen

91 4Runner

Like this...

http://www.gitout.com/leaf-spring-te...shackle-angle/

tlrskunk

Tofer measurements would be sweet. This is what I need to get accomplished when I get home. I am thinking 2wd F150 springs(57") so I will need to modify your numbers but it would give me a rough guess.