"Boxed" non-tii trailing arms

[uxoman]

I think my "Boxed" non-tii trailing arms turned out pretty good. I cut out 16-gauge sheet steel and formed them to fit and a friend of mine tig welded them in place. Now I need to drill a hole for the brake line and por-15 them inside and out.

[Martin]

Sweet. Those turned out nice Phil!

[Harv]

They look great. Did you weld them in a jig? Make sure they still fit before you go any further.

John

[Ray_73Turkis_OH]

non-boxed trailing arms ever flex or break.

Are you building a Torque monster?

I wonder if there is some kind of lazer measuring

system you could hook to your g-analyst that

would indicate changes in alignment of a lazer

and a recepter.

Someone needs to give this to Mike Valentine

to create.

Ray

[uxoman]

I have never heard of one failing, but if your using polyurethane bushings and sticky tires on the track, I think there could be some flexing. As for building a torque monster, "no" but I am installing an E30M3 engine in my car pushing around 200hp.

Also, I have sent my stub axles out for cryogenic treatment to make them harder. I have heard of them failing in high hp cars.

[bimmerboy]

i noticed many of the others who did this had to do it again because theirs warped

[FP2002]

I have seen 2 break and had one crack. These were on race cars so the loads are much higher than a typical street car, but they do flex and they can break. Crack was in the weld that runs under the hub.

As for the brake line, found it easier to weld a bracket on the top of arm rather than run through the inside. Not what the factory did, but it makes easier to connect the line.