60-66 Stepside rear step bumper modification - The 1947 - Present Chevrolet & GMC Truck Message Board Network

murphy98 · 04-13-2014, 07:18 PM

Hey WhippinSaw, you are making great progress! Side pieces are looking really good! I must admit however that I am not sure why the vertical section of diamond plate is sagging? I did notice that in your last pic on post #33 you can see that there is a downward dip in the vertical piece of diamond plate & a downward dip in the horizontal piece towards the vertical. That distortion may be due to the rust build up at the outer edge? So perhaps when you removed the extra flat section of diamond plate the vertical piece took on more of the slope downward due to the missing horizontal section. Hopefully once you add in the new section of horizontal (step section) of 1/8" diamond plate under the vertical piece, the vertical section can be pushed up with a floor jack and tack welded to see if the sag is corrected. Not sure if that makes any sense? Kind of hard to describe. This was my first time working with diamond plate too so I'm afraid I'm no expert! If the sag is not corrected when the new horizontal piece is installed you may need to cut some of the vertical section further towards the center of the bumper and splice in a new piece. Not sure if this is of any help but I hope the sag can be corrected. Keep us posted!
Murph.

WhippinSaw · 04-13-2014, 07:31 PM

Thanks for the reply murphy98, the floor jack and some massaging might work. If I have to I can try to re skin the whole thing. Im getting ready to make the final adjustment on the fender tip spacing and was wondering if the bumper tip touches the fender or do I leave a small gap.

murphy98 · 04-13-2014, 07:52 PM

I was going to suggest if the sag can not be corrected that you may need to consider (although I know it's a ton more work) redoing all the diamond plate with new stock but did not want to overwhelm you! Glad you are considering it if the jack does not work, hope it does however. I left just under an 1/8" gap between the edge of the diamond plate/end tips and the fender. This allowed me to use left over fender welting to fill the gap and prevent the bumper from scratching the fender.

04-13-2014, 07:18 PM	#1
murphy98 Registered User Join Date: Jan 2014 Location: Ontario, Canada Posts: 235	Re: 60-66 Stepside rear step bumper modification Hey WhippinSaw, you are making great progress! Side pieces are looking really good! I must admit however that I am not sure why the vertical section of diamond plate is sagging? I did notice that in your last pic on post #33 you can see that there is a downward dip in the vertical piece of diamond plate & a downward dip in the horizontal piece towards the vertical. That distortion may be due to the rust build up at the outer edge? So perhaps when you removed the extra flat section of diamond plate the vertical piece took on more of the slope downward due to the missing horizontal section. Hopefully once you add in the new section of horizontal (step section) of 1/8" diamond plate under the vertical piece, the vertical section can be pushed up with a floor jack and tack welded to see if the sag is corrected. Not sure if that makes any sense? Kind of hard to describe. This was my first time working with diamond plate too so I'm afraid I'm no expert! If the sag is not corrected when the new horizontal piece is installed you may need to cut some of the vertical section further towards the center of the bumper and splice in a new piece. Not sure if this is of any help but I hope the sag can be corrected. Keep us posted! Murph. Attached Images

04-13-2014, 07:31 PM	#2
WhippinSaw Registered User Join Date: Aug 2012 Location: Lisle Illinois Posts: 602	Re: 60-66 Stepside rear step bumper modification Thanks for the reply murphy98, the floor jack and some massaging might work. If I have to I can try to re skin the whole thing. Im getting ready to make the final adjustment on the fender tip spacing and was wondering if the bumper tip touches the fender or do I leave a small gap. Attached Images __________________ 1963 Fleet Side cab, Converted Fleet Side Barden bumper, Step Side in the middle.

04-13-2014, 07:52 PM	#3
murphy98 Registered User Join Date: Jan 2014 Location: Ontario, Canada Posts: 235	Re: 60-66 Stepside rear step bumper modification I was going to suggest if the sag can not be corrected that you may need to consider (although I know it's a ton more work) redoing all the diamond plate with new stock but did not want to overwhelm you! Glad you are considering it if the jack does not work, hope it does however. I left just under an 1/8" gap between the edge of the diamond plate/end tips and the fender. This allowed me to use left over fender welting to fill the gap and prevent the bumper from scratching the fender.



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