88GW
04-28-2003, 07:27 AM
I have fabbed up a winch bumper and mounts for my 88 GW. I am making minor changes to the mount system and wanted some input on what you may have seen or know.
The bumper is made of 2"x6" .250" thick rectangular tube with all .250" or thicker material.
Mounting is generally comprised of two 3/8" thick 2" wide hot rolled flat stock that will mount flat to the framerails via grade 8 hardware with .250" thick flat plates on the inside of the frame rail to prevent the frame from being pinched in.
I have also taken a piece of .250" angle iron and welded two flat plates to the ends and placed this inbetween the frame horns where the stock bumper bolts went through. I bolted this angle to the rectsangular tube that spans the original fram horns with grade 8 hardware and .250" thick backing plate to prevent the frame from being pinched. I am then going to bolt through the sides where I welded the flat stock to the angle iron which then goes onto the 3/8" flat stock mount on the bumper via grade 8 bolts.
Overall it will have four mount points per side, two on the angle iron which is bolted with grade 8 to the center section of the frame which is then bolted to the bumper through the 3/8" bracket. And two grade 8 bolts through the frame rails, the 3/8" bumper bracket and .250" backing plate on the inside of the frame.
All garde hardware is 7/16-20 which has a shear at the threads of 10,500lbs and at the body 13,500lbs approximately.
How does this sound if you can understand it? Any input would be great before the final bolting.
The bumper is made of 2"x6" .250" thick rectangular tube with all .250" or thicker material.
Mounting is generally comprised of two 3/8" thick 2" wide hot rolled flat stock that will mount flat to the framerails via grade 8 hardware with .250" thick flat plates on the inside of the frame rail to prevent the frame from being pinched in.
I have also taken a piece of .250" angle iron and welded two flat plates to the ends and placed this inbetween the frame horns where the stock bumper bolts went through. I bolted this angle to the rectsangular tube that spans the original fram horns with grade 8 hardware and .250" thick backing plate to prevent the frame from being pinched. I am then going to bolt through the sides where I welded the flat stock to the angle iron which then goes onto the 3/8" flat stock mount on the bumper via grade 8 bolts.
Overall it will have four mount points per side, two on the angle iron which is bolted with grade 8 to the center section of the frame which is then bolted to the bumper through the 3/8" bracket. And two grade 8 bolts through the frame rails, the 3/8" bumper bracket and .250" backing plate on the inside of the frame.
All garde hardware is 7/16-20 which has a shear at the threads of 10,500lbs and at the body 13,500lbs approximately.
How does this sound if you can understand it? Any input would be great before the final bolting.