LM stiffening question

[BEACHHOUSEGURU]

Good afternoon

I am working on cleaning and repairing some rust spots on my 66 Vert

in the picture attached I have circled a couple of what look like reinforcing plates welded in place near the rear torque boxes (if that's what they are called on the corvair), Not my car but a pic I pulled from the web.

At first I thought they were amateur fixes based on the welding, but it looks like this is a factory mod?

Does anyone know if there is anything under the patch or is it just the patch welded on to stiffen the corner?


Thanks!

"Murph"

[66vairguy]

I was working on my 66 convertible and looked underneath - YES those welded to body plates are FACTORY on the convertible. Another one for the "list".

Also added on the convertible:
Rear frame rail corner reinforcements in the engine bay.
Reinforcement under the rear air box inlet.
Rear fender brace diagonal strap below window winder to wheel wheel lip
Revised front brace in cowl/wiper linkage area.
Braces at inside of lower front door hinge support.
Brace on lower front bulkhead (double walled instead of single wall).
Brace for top mechanism on inside of rear fenders.
Thicker rocker panel metal with added "Z" brace inside rocker box.
Harmonic dampers in corners of engine bay and trunk (oil filled spring on weight canister).
Revised windshield frame.

That's all I know of, no doubt more. Amazing that with all this added metal the LM convertible is still a "flexy flyers".

[Project65]

Hi Murph,

I’ll add to what Bob has shared.

As I’m rebuilding my’65 sedan, I’ve replaced about 60% of the car from rust damage, and my front subframe, floor, rear seat floor, and tailpiece are from a ‘65 convertible. I effectively have extra stiffening in my Sedan.

On the convertible, underneath the rear seat is extra stiffening braces, and the cover plate simply covers an empty void, but it would seem that the plate boxes in the area and would add stiffening. The cover plate is very thick, like 1/8”.

I’ve attached a photo of my install with no cover plate. The added subframe rail under the seat welds to the standard subframe rail. The extra rail are strong for sure. ( I still need to apply some surface rust converter and undercoating.)

[Allan Lacki]

Stiffening Your Corvair.

Click or tap this link to read an article on the subject. It may not be what you're looking for, but it's relevant to this topic!

https://tinyurl.com/55peeb2k