Re: 1970-1972 Chevelle frame...what will get me bounced?
 

Edelbrock & hotchkiss perf supposedly made/make some triangular stiffening plates that helped stiffen the frames on 454/455 engined cars---Supposedly all 454/455 used the A body convertible boxed frames whereas a sedan or 2dr ht used the standard C or non boxed frames

Re: 1970-1972 Chevelle frame...what will get me bounced?
 

<So to those out there contemplating owning or driving a class car, I strongly suggest becoming a member, knowing the rulebook, subscribing to Nitro Joes Stats and going to your local class race and talking to the participants. >

The last ND I received before the holidays had an ad in it for the printed rule
book for $7.00 + handling charge if you called in the order. If you do it on
line then it is $10.00 + handling charge.

Re: 1970-1972 Chevelle frame...what will get me bounced?
 

These were a single strut that went from the front lower control arm bolt to the frame. My buddy's '70 Stage 1 car had them, my small block Skylark did not.

I do not recall seeing anything that tied the top and bottom mounts though. I have not been under my Buick for a while though.

Re: 1970-1972 Chevelle frame...what will get me bounced?
 

This is what the GM "A" body rear upper, and lower ca braces look like.....
http://www.musclecarmetal.com/catalo...er.asp?id=1552
They did not come on all "A" body cars, just the 4-speed, or big block, or cars with the "hi- performance suspension option......

Re: 1970-1972 Chevelle frame...what will get me bounced?
 

yep, that's the ones BUT my wifes old 68 300 chevelle had 'em...but you're correct, not ALL A bodies had 'em.
seldom seen them on 64-67's.
was there a TSB for them somewhere back then?
i dunno.
heard it was a retrofit kinda deal for some issue back then and it just went into assembly line cars...

60K 6 cyl/3speed...bought it from the original owner..