I had a crossmember fabricated out of 2" square steel with 3/8" steel to make the exhausts cut-outs. With the weight of the transmission on it I find that there is some flex when I pull down and push up on the transmission. Should the crossmember be completely rigid or is some flex acceptable.? I was thinking of adding gussets to the cut-outs to try to stiffen it if necessary.
Transmission Crossmember
- Thread starter Malibu Mad
- Start date
My G-force member flexes a very little when I set the transmission down. I think completely rigid might not be the best but ofcourse you don't want it floppin around under there either.
Throw some picks up of everything installed and I'm sure one of the more knowledgable welder dudes on here will chime in.
Throw some picks up of everything installed and I'm sure one of the more knowledgable welder dudes on here will chime in.
I used the original crossmember with some 3"x4"x.125" tubing and it doesn't seem like it flexes much at all to me.
This is the only pic I have of it currently:
This is the only pic I have of it currently:
did you ever try to flex the crossmember before hand..
if you are sure the weld are good, ithink you should be ok.. it looks pretty sound to me.
if you are sure the weld are good, ithink you should be ok.. it looks pretty sound to me.
I've got a iceman turbo 400 crossmember with the extra frame piece for sale if anyone is interested. It's one of his earlier pieces, not the new light weight design. It definitely helps
stiffen the chassis by tying the frame rails together. I never noticed any kind of sagging with it. It's a very solid cross member.
Thanks
stiffen the chassis by tying the frame rails together. I never noticed any kind of sagging with it. It's a very solid cross member.
Thanks
Welding looks good. It is probably flexing were the 3/8" plate was bent. If it is I would put little triangular gussets on the inside of the 90 degree bends.
Sorry, I just noticed the butt weld on top. I would also grind the weld flat and weld a plate across the top 1/4" should do it. I'm not trying to pick it apart. I've been a Millright for 20years and I know what flex will do to flat plate.
Talking about mine? I haven't really checked it for rigidity, may do that when I take everything apart to do the '78 though.
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