I had this thought that I’d make modified spring perches. To replace the rusty stock ones I pulled off, and…
This is where I doubt my thinking. The spring perch is really at an awkward angle when the trailing arm at fullest low position. I’m sure it’s more aligned with the upper spring bump stop when fully compressed. But I thought I’d cant the spring perch a little to make it align “better” with spring when trailing arm at a more neutral position.
You probably know that the diesel 16” Syncro had wedge shaped aluminum spacers on the spring perch to do the same thing. But I’m guessing it was more to accommodate the change brought about by the 16” Syncro longer trailing arm.
So it’s very debatable if what I’ve done is wise or needed. But hey ho! Off we go.
Perch made from circles of 3/16” steel. I modelled a tapered spacer from same stock , and made developed shape to cut out. I just hand bent it to slightly smaller than the discs, welding allowance.
Tacked up , you get the idea
Tacked, getting the idea now?
With an extra home made plastic pad, had milled in recess for spring pigtail. That’s about 1.5” at the back. I can make thinner plastic pad if this is too much of a lift. The pad as is, 1/2”.
I put some rust converter on the trailing arms and plug welded the three holes under the perch. I didn’t attempt to fill the divots left from drilling out the spot welds that held on the original perch
And then clumsily mig welded onto arm. I’ll drill a hole in the sandwich and squirt in some waxy stuff for rust protection. Then weld up the hole.
I don’t know if all this is a good idea. But I did it 🙂
Next is to pop in some m6 riv nuts that I’ll use to secure clios for both the brake hydraulic arm, and the e brake cable. I’m thinking about welding closed some of the seam area left open from factory, not sure about that though. And I might shave the seam for more tire clearance, as the kids are doing these days ( I did that on the pair of arms I gave to Simon). Apart from that the next steps are another sandblast then powdercoating .