Leaf spring mount for Mirada

Buick_T

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My hurry to get Mirada on the road for this summer is again over, due to once again expanding the project a bit too far. Maybe next summer!

Right now I am in a lookout for front spring mounts for Mirada with stock springs (oval front bushing with 9/16" bolt). I found a few models but some seem to be too shallow (round bushing?) and some have 5/8" bolt hole.

Is there a direct replacement? Or other body-model mount that fits?

My rear axle has been sandblasted, painted, re-sealed and all the bearings sorted by a professional. Also got new spring perches welded and got rid of the rubber cushion bushings. And here comes the but..

The perches might be slightly off-set (but exactly same distance from axle ends, luckily) since with stock front mounts the rear hangers bent outwards maybe half an inch and making the outter hanger bushings push inside the spring loop... My idea is to get new mounts and hangers and measure and re-align the front ones (drill/elongste chassis mounting holes) with the axle perches and rear hangers. The old ones are already too beaten, twisted and in all sense bad I don't want to reuse them. I contributed a bit to their current state by trying to modificate them with awful results! But found out bending them outwards 0.15-0.20" will do the trick!

IMG_20240507_152351.jpg
 

Buick_T

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Someone will have to double check me to see if the J body ones are the same, but there's a listing right here on the forum for these: FOR SALE - NOS rear spring front hangers part 4052205

Why do you have to bend anything?
Oh, missed the listing then and I tried to search first.

I hope I don't have to bend anything, that is the idea. But the old ones are in need of replacement anyway! Of course I could go to local metal works shop and ask them to make new ones.

As I explained, the axle perches have moved a bit (due to welding), so the angle from front mount through axle perch to rear hanger changed to bit too steep. I will have to just slighty move the front mount outwards so everything is aligned again.

OR

To be honest I somehow think the old ones were already bent for some reason since the left and right ones were very differently bent... The right one in the photo had much steeper bends than the left side! That might have also caused the misalignment of the leaf spring.
 

Samsam413

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My hurry to get Mirada on the road for this summer is again over, due to once again expanding the project a bit too far. Maybe next summer!

Right now I am in a lookout for front spring mounts for Mirada with stock springs (oval front bushing with 9/16" bolt). I found a few models but some seem to be too shallow (round bushing?) and some have 5/8" bolt hole.

Is there a direct replacement? Or other body-model mount that fits?

My rear axle has been sandblasted, painted, re-sealed and all the bearings sorted by a professional. Also got new spring perches welded and got rid of the rubber cushion bushings. And here comes the but..

The perches might be slightly off-set (but exactly same distance from axle ends, luckily) since with stock front mounts the rear hangers bent outwards maybe half an inch and making the outter hanger bushings push inside the spring loop... My idea is to get new mounts and hangers and measure and re-align the front ones (drill/elongste chassis mounting holes) with the axle perches and rear hangers. The old ones are already too beaten, twisted and in all sense bad I don't want to reuse them. I contributed a bit to their current state by trying to modificate them with awful results! But found out bending them outwards 0.15-0.20" will do the trick!

View attachment 52973
Mancini Racing has some front leaf spring Hangers So I’m running a 15x8 deep dish with 3 inch backspacing. The springs are Mopar performance 64-65 b body P3690456 and P3690457 springs with Mancini racing spring Mount extensions They have a Chart for the Springs These are what I used the J body Hanger
1741667323978.png
 

Camtron

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General Spring KC and ESPO Springs and Things are the typical go to places for leaf springs for these cars. They have everything you need, 4 leafs, 5 leafs; whatever you want.
 
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