Rear wheel alignment

[dallasdude]

To put the Blatchat posts in perspective....a lot of these cars are 15 years old or older and had a lot of miles on poor roads in bad weather. In some cases rust is the culprit. That said, what you want on a high powered Caterham that is tracked is a wide buttress version 7 De Dion tube. I don't know what the crossover date is, but any car built 2003 or earlier is not going to have it unless it has been upgraded. The later ones made with two shock mount positions are acceptable for most applications, but not as good as the wide buttress single shock mount.

 

I suspect your damage was not from when it was pulled up on the flatbed, but when it was tied down. The wrecker driver probably looked up underneath the back the biggest thing he saw was the De Dion tube. Like a live axle American car, the tube is connected directly to the tires....with no spring in between, so when he winches it down to hold it, the tube I believe in your case distorted. Problem is the tube is not as strong as what is his used to, and probably used a hook or chain instead of an axle strap, creating a stress point.

 

The triangles can be straightened in some cases. The trailing arms maybe are not bent, but you might find someone who has upgraded to the Watts link and has their trailing arms lying around.