Spyder Rear Coil Over Chassis Question

Here's a few.........Bruce

Thanks Bruce. Very helpful. Curious if anyone has pics of some other methods. Maybe with a swing axle transmission?

@brsturges posted:

Thanks Bruce. Very helpful. Curious if anyone has pics of some other methods. Maybe with a swing axle transmission?

The last 2 pictures are swing axle.  That is how almost all of the Vintage Motorcars Spyders are built.  The car under construction is Bruce's car, with the prototype IRS suspension that Vintage is currently working on.  Unfortunately for everyone else,  Vintage is no longer taking orders on Spyders.

Got it. Appreciate that clarification @LI-Rick. It's tough to see the trailing arms in those last two pictures but maybe part of it is shown here circled? Hopefully someone has a Vintage Spyder and could post some pics with a rear wheel off. Would love to see the attachment to the axle and the frame.

Like this? This is the typical Vintage setup.

Isn't the toe adjustment on Vintage Spyders the big heim joint at the front of the trailing arm?

@Carlos G, that's just what I was looking for. Thanks!

@edsnova, that would make sense as threading that big heim joint in or out would definitely change the toe in. Just guessing though since I don't have one

Ed is correct. I run 1/16" TOTAL toe-in, so 1/32" per side both front and rear. Learning from my Formula Vee, I could run a small amount of toe-out or run zero in the front to make the car turn-in sharper, but that would lessen the high speed stability.

Here's a little tip for any of you that want to accurately check the toe-in/out on your cars, frt or rear. You can make tis up with some scrape wood and nails and a spring.

To use, just jack up a wheel, place the marker on the tread and spin the wheel to mark a line all around your wheel then do the other side and take a measurement on the front and rear of the tires to get a reading.  Simple and effective.  If the pencil breaks just drive a nail in and remove the nail head.  Some more CAD (cardboard aided design by ......Bruce

I just made a laser line alignment tool. Three parallel laser lines, one center, two just outside the tires. Set it in front of the car and line it up. A ruler measures toe and camber to the rime edge. Less than $100 all up. I line it up down the chassis center line, front and rear. You can see the laser line on the floor clear to the back of the car.

But for those who don't want that complication, simple toe plates and a tape measure or two will take care of it. Cheap, too.

https://www.ebay.com/itm/28485...xEAQYBCABEgJC-vD_BwE