I completed the installation of my 3 point seat belts. I had not seen Griggs post prior to me cutting the slots to route the belts thru the seat frame. I cut mine in the same location but longer to accommodate an additional lap belt for a middle passenger. When I cut the rectangular holes, I slotted them and folded them over so I didn’t leave the sharp edge.
I also followed Deve’s location for the retractors but with my gas tank still installed I opted to bolt the L bracket both thru the floor and the seat riser instead of welding it in. I located the brackets on the pillar a bit higher so it wouldn’t interfere with the windless weatherstripping. I also added one pop rivet under the bolt hole to keep it in place. This rivet is hidden by the d-ring and belt. The position seems good to me, not too low or high.
Since I was adding a third belt, I opted to fabricate my own L brackets from 3x3x1/4” angle, to accommodate two belts. These were attached with oversized 1/4” steel plates thru the cab floor which I drilled and tapped for 7/16-20.
I also increased the size of the bolts that attach the seat frame to the adjusters to 3/8” grade 8 and added some weld to the adjuster brackets where spot welds were holding the assembly together.
Last edited by Phak1; 11/09/20192:33 AM.
Phil Moderator, The Engine Shop, Interiors and Project Journals
1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes Project Journals Stovebolt Gallery Forum