Lil Bit of a Problem - Team Camaro Tech
Brakes, Suspension & Steering Conversion questions, Steering & Handling

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post #1 of 7 (permalink) Old Aug 6th, 17, 05:54 PM Thread Starter
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Brett
 
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Lil Bit of a Problem

I finally got around to replacing the Sub Frame bushings and I have encountered a little bit of a problem; The firewall subframe area was either cut out or rusted out and the prior caretakers cut out a large washer-like piece of steel to act like the subframe support. I can put it together with the new parts, but it is also a little off line. I tried to put a shaft through the alignment hole and got is closer, but if anyone has tips on how to get it lined up closer, I'm all ears. This is on the passenger side and the driver side bolts are loose. I have chocks behind the rear wheels, so I can try to "wheel" it back a little to align it. I can pull it close, but it springs back. Maybe the tranny mount?
As far as the over-sized hole in the subframe, do I need to weld something in place to reduce the hole size? Thanks!

Brett......






1969 SS 396 X66 - RS Conversion - TKO600 - 3.73 Posi - Paint Code 71-LeMans Blue
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post #2 of 7 (permalink) Old Aug 6th, 17, 06:08 PM
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Rich
 
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Re: Lil Bit of a Problem

If you need to pull the sub-frame towards the rear, hook a come-along to the sub-frame and the rear end and pull the sub-frame back. It should hold the position that you need while you work on the bushings. It would probably help to loosen the trany mount bolts or the cross member bolts to give some play although I would expect the driveshaft yoke should have enough slip for the small distance you are talking about. I had to do this on my car and it worked pretty well.

It would probably be a good idea to weld in a repair plate. Most of the common vendors have pre-cut plates but I thin that you need a bit more access to the perch than you will get in an assembled car. Maybe you could buy the plates and trim them to fit from the bottom side.

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post #3 of 7 (permalink) Old Aug 6th, 17, 06:11 PM
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Don
 
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Re: Lil Bit of a Problem

If you try to align it now with all the front sheet metal installed it likely won't move or you will mess up your gaps.

They sell repair washers that are welded in to repair the subframe mounts. Common problem.

Don

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post #4 of 7 (permalink) Old Aug 6th, 17, 07:38 PM Thread Starter
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Re: Lil Bit of a Problem

Ya know, both you guys gave some great tips and info. I was wondering why I couldn't get my fenders and front sheetmetal to line up better, ha. When I was assembling the front sheetmetal, it acted like it needed to come left (looking at it from the front).The come-along is a great and very smart idea. I will look into repair washers for that area, then loosen all the front bolts (jk) and wench it into alignment.
Thanks!

Brett......

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post #5 of 7 (permalink) Old Aug 6th, 17, 08:34 PM
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Re: Lil Bit of a Problem

Loosen all of the bumper bolts, radiator support bolts. You can actually remove the sub frame without disturbing the sheet metal.

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post #6 of 7 (permalink) Old Aug 7th, 17, 03:02 AM Thread Starter
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Re: Lil Bit of a Problem

Quote:
Originally Posted by scblucam View Post
Loosen all of the bumper bolts, radiator support bolts. You can actually remove the sub frame without disturbing the sheet metal.
Thanks! Will do...

Brett......
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post #7 of 7 (permalink) Old Aug 7th, 17, 06:41 PM
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Re: Lil Bit of a Problem

Quote:
Loosen all of the bumper bolts, radiator support bolts. You can actually remove the sub frame without disturbing the sheet metal.
Thanks! Will do...

Brett......
Let me elaborate a little. To adjust you can do as I said and loosen every thing. If you want to remove the sub frame you can so it without disturbing the sheet metal but the bumper and extensions have to come off. You could even do it with the drive train intact but it will require pretty extensive equipment to do it.
I put mine back together about 1985 with chalk lines, plumb bobs, levels, tape measures, etc. and thought I was good. NOT. Still off a little. Rides fine but I Know. I would suggest a good frame shop that works on old stuff unless you have the serious equipment to do it.

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