file 700 HP 1969 Camaro 540 BBC “Do-Under” Gets All New Underpinnings At V8 Speed & Resto

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14 Mar 2017 21:29 #3614 by oestek
oestek replied the topic: 700 HP 1969 Camaro 540 BBC “Do-Under” Gets All New Underpinnings At V8 Speed & Resto
The driver side had a similar repair.



Pinching the frame rail for the Detroit Speed tubs to fit.







After cutting out the previous repair, it was determined that a replacement strip should be welded in place of the old repair. This would preserve the outer wheel house, and this time, it would be metal finished to blend in and the repair would be undetectable.

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14 Mar 2017 21:29 #3615 by oestek
oestek replied the topic: 700 HP 1969 Camaro 540 BBC “Do-Under” Gets All New Underpinnings At V8 Speed & Resto
Forming the new strip



The new piece was made on the shrinker / stretcher to bend a 90 degree piece around to match the wheel tub shape.





The new strip was resistance spot-welded to the original welding flange on the new DSE deep tub, and then welded to the original outer tub with a series of tack welds all the way around.






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14 Mar 2017 21:30 #3616 by oestek
oestek replied the topic: 700 HP 1969 Camaro 540 BBC “Do-Under” Gets All New Underpinnings At V8 Speed & Resto
Here, you can also see the finished narrowed frame rail.



After grinding, the seam is invisible, but the original wheel tub seam is present.





The trunk floor was recessed to accommodate the wider tub.

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21 Mar 2017 21:20 #3637 by oestek
oestek replied the topic: 700 HP 1969 Camaro 540 BBC “Do-Under” Gets All New Underpinnings At V8 Speed & Resto
Next, the process was repeated on the driver side.



Some filler was found in the trunk floor, so the area was investigated to assess structural integrity.



After some cleaning and grinding, some corrosion holes were uncovered.



The cabin floor was marked for trimming to accommodate the wider wheel tub.



The rusty area of the trunk and cabin floor was cut out.



The frame rail was narrowed, and the wide Detroit Speed wheel inner wheel tub was installed.



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21 Mar 2017 21:21 #3638 by oestek
oestek replied the topic: 700 HP 1969 Camaro 540 BBC “Do-Under” Gets All New Underpinnings At V8 Speed & Resto
The HTP resistance spot welder is used where the electrodes can access the panels, and the remaining welds are traditional plug-style welds.

More body filler was found in the trunk floor in the location where the new rear crossmember will be installed. The crew hoped that this was confined to the area of the trunk floor that would be cut out.





The white line represents the area that will be removed for the upper crossmember installation.



More filler deeper into the trunk floor. The decision on the repair was posed to the customer, and Adam proceeded to install the DSE crossmember.





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21 Mar 2017 21:22 #3639 by oestek
oestek replied the topic: 700 HP 1969 Camaro 540 BBC “Do-Under” Gets All New Underpinnings At V8 Speed & Resto
In the passenger cabin, the DSE upper control arm mount pockets were installed in the rear passenger seat floor.









The rear seat will require some modifications to accommodate the wider tubs and control arm mount pockets.







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