ClassicCar

Birdman

I know the rear springs on a 47 are not parallel as the front of the springs are closer together than the rear. Does any one know the angle from parallel? I am installing a late model Ford 8.8 rear axle and would like to cut the spring perches to the correct angle.

Tom Drew

I am planning on doing the same rear end swap with my '46 pickup. I'm using the 1st gen. Ford Explorer rear end. I was advised to cut off the existing perches and anything else that was in the way, then assemble everything with the u-bolts somewhat tight but to still allow for proper pinion angle adjustment. When the pinion angle is correct, then you tack the spring perches. Disassemble to do the finish welding of the perches to the axle tube. Idea is that the perches find their own alignment regarding placement and angle on the axle tube to match the Hudson's splayed leaf spring design. The only other thing is depending on which perches you use, you may have to open up the radius on the perches by grinding a little to allow the perches to sit at the proper angle on the tube to match the splayed springs. Have not done mine yet, but it makes sense and I respect the opinion of those who advised me on how to do the setup!

-Tom

Ol racer

FYI
Ive used a common protractor available anywhere to take two readings after removing the Hudson housing, one at bottom of pinion Yoke while rear end is setting level (on couple of Blocks or Cases), and the other reading on the flanges (Saddles), then duplicate onto the Ford housing. You can also center your saddles while setting on the Blocks. Ive also elongated one side of the saddle to enabling twisting inboard slightly. Dont over worry since If your off a little it can be tweaked with tapered shims.

Lastly, Weld saddles back on slowly because excessive welding heat can bow the housing.

lsfirth

If anyone agrees that the the '49 springs are at the same angle, I'll go measure the spring perch angle on my housing.....I imagine the 48/49 is different than the 47.

Lee

Birdman

Thanks for all the input so far. My plan was to use a piece of 2"x4" box tube about 4" long to make the perches. Would tilt the table on my drill press to the correct angle then use a 3" hole saw to drill a hole centered on the 4" side of the tubing. Then saw the tubing long ways through the hole to create twp perches.Does this make sense to you guys?

Ol racer

FYI
Any Speed Shop should have new leaf spring Saddles for $15-$20 max, Here is just one Company www.marketworks.com 913 334 0477

Tom Drew

I'd buy 'em for all the work fabbing them would be:

http://www.speedwaymotors.com/Speedway-Weld-On-Spring-Pad-for-3-Inch-Axle-Tube,632.html

Tom

Ducor Kid

Here are the ones I used.
http://www.4wd.com/Fabrication-Tools/Leaf-Spring-Perches-by-Warrior-Products.aspx?t_c=86&t_s=527&t_pt=101476&t_pn=W/I175

Larry

Ol racer

TESTING

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