Why didn't I address this while I had the tranny out?
I'm going to be installing a set of Maier sub frame connectors shortly and last night I decided to do a test fit only to find out that the frame rails are deformed (buldging out)enough that the U shape bracket of the SFC will not fit.
I need to squeeze the lower section of the sides of the frame box inward to their original dimension. What are my options beside a BFH ? Is the frame rail material thin enough that I could use a large bench vise mounted to a floor jack and squeeze the area inward?
How much are we needing? My father in law has a set of clamps that has a turnbuckle style mechanism that will pull metal together, but it only has about a 1 1/2 inch travel. It's a woodworking set that he modified.
Kind of the opposite of a porta power.
1968 Coupe, In progress
1966 Red Conv (200)
1966 White Pony Int.(289)A Code
1966 Coupe 5.0l; 10:1 compression; 650 Speed Demon, and Close ratio Toploader
So would a large massive C clamp work as well? I haven't measured the difference but I think we're look to move each wall inward about 1/2". I could attempt with the C clamp and have a 1/4" piece of metal between the clamp and the rail to distribute the load.
I had the same problem with my Maier subframes fitting the frame rails. I just used a few persuasive blows with sledge hammer to get the rails back into shape. The frame rail metal isn't that thick/tough. I guess that's why they dent so easily in the first place!
67 C code fastback - more pics
Paint & Body done 1/27/09
Global West a-arms
Baer disc brake system
alum radiator w/dual electric fans
31 spline 9" w/3:50 gears
Azenis RT 615 225/50/16 front & rear
The others are right, they move pretty easily. One tip I can offer is for the deep dents. Drill the deepest part of the dent and run a sheet metal screw into it. Rig up a pry bar and apply firm downward tension to the screw while tapping on the "bulged" part of the rail. It's amazing how flat and straight you can get the rails to look. Weld up the holes when you are done and no one will ever know your P.O. used the rails to jack up the car.
If it can't be fixed with a hammer, you have an electrical problem...(stolen from the H.A.M.B.)
Tonight I got out my big C clamp and a couple pieces of 3/8" plates on each side of the frame rail. Squeezed them plates together and it moved so easily. The rail material is as limp as Midlife's.....well You know......
Can't believe how soft that metal really is. No wonder these car's underbellies look so rough.
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