DSCF0857 - GMC Sierra jump seat.jpg
47 hits | 45.93 KB | Posted: 5/1/19
2001 GMC Sierra jump seat, cushion removed to begin deconstruction.

DSCF0858 - GMC Sierra jump seat.jpg
47 hits | 64.45 KB | Posted: 5/1/19
The Sierra seat sits up quite high, in addition to having a very thick (4.75" @ back, 6.5"...

DSCF0881 - GMC jump seat, matched with Ford base.jpg
48 hits | 54.93 KB | Posted: 5/1/19
Deconstructed jump seat matched with the F-series 40/20/40 base plate.

DSCF0886 - GMC jump seat, almost fits without armrest.jpg
43 hits | 44.9 KB | Posted: 5/1/19
Not enough room to keep the driver's seat armrest, but the folded-down jump seat has padded edges to...

DSCF0956 - jump seat, back upright welded.jpg
38 hits | 47.48 KB | Posted: 5/1/19
Rear upright welded to the new c-channel base. The F-series 40/20/40 bracket doesn't have the 4 mou...

DSCF0961 - jump seat, front upright welded.jpg
34 hits | 34.25 KB | Posted: 5/1/19
Front upright welded on, maintaining the Sierra's front-to-back distance and slope.

DSCF0962 - jump seat shell installed.jpg
40 hits | 36.32 KB | Posted: 5/1/19
Bolted in temporarily, while deciding what to do next... The plan is to build a much thinner cushio...

DSCF0965 - jump seat shell installed.jpg
48 hits | 52.79 KB | Posted: 5/2/19
Less sun drenched picture of the installed shell.

DSCF0997 - jump seat, rear tray layout.jpg
41 hits | 58.13 KB | Posted: 5/2/19
Layout for the rear storage tray. The same configuration will work up front, below the cup holders....

DSCF0998 - jump seat, front tray clearance.jpg
37 hits | 26.38 KB | Posted: 5/5/19
Front tray clearance.

DSCF0999 - jump seat, rear tray clearance.jpg
35 hits | 46.77 KB | Posted: 5/5/19
Rear tray clearance.

DSCF1002 - jump seat, stock foam.jpg
29 hits | 26.92 KB | Posted: 5/5/19
Stupid thick stock foam.

DSCF1005 - jump seat, upper frame mockup.jpg
37 hits | 48.43 KB | Posted: 5/5/19
Mocking up the upper frame that'll support the seat base.

DSCF1006 - jump seat, structure complete.jpg
36 hits | 41.34 KB | Posted: 5/5/19
Nearing completion ... just need to clean up the upper frame's welds, remove the round tube, add an ...

DSCF1009 - jump seat, rear cross brace.jpg
43 hits | 77.48 KB | Posted: 5/8/19
Rear cross-brace tubing removed for hinged seat base clearance, new brace added further back with re...

DSCF1010 - jump seat, cutting board.jpg
42 hits | 31.43 KB | Posted: 5/8/19
I had some long pieces of cutting board material that happened to be the exact 11.75" width bet...

DSCF1012 - jump seat, seat back installed.jpg
51 hits | 48.28 KB | Posted: 5/8/19
Storage area not skinned yet, but the seat back is installed finally, after holding my breath that e...

DSCF1016 - jump seat, seat back installed.jpg
35 hits | 42.28 KB | Posted: 5/8/19
Reverse angle view of the alignment of the three seat backs.

DSCF1013 - jump seat, seat back down.jpg
43 hits | 47.67 KB | Posted: 5/8/19
Seat back folded down...a little higher than ideal as an elbow rest, but plenty comfortable. Nice s...

DSCF1014 - jump seat, seat back storage.jpg
41 hits | 45.58 KB | Posted: 5/8/19
Lots of storage in the seat back. It can only open when in the horizontal position, so minimal conc...

DSCF1115 - GMC jump seat, sheet metal template.jpg
36 hits | 38.37 KB | Posted: 6/25/19
Started working on the sheet metal skin.

DSCF1116 - GMC jump seat, sheet metal template.jpg
37 hits | 42.35 KB | Posted: 6/25/19
Working on the sheet metal skin. The sides are going to be complicated.

DSCF1121 - GMC jump seat, modified cushion cover.jpg
42 hits | 35.96 KB | Posted: 6/25/19
I reused the GMC foam and seat cover, modifying the cover's closure method now that half the foam's ...

DSCF1177 - GMC jump seat, painting.jpg
47 hits | 41.65 KB | Posted: 6/25/19
22 ga sheet metal is cut and welded up (by far the worst step of the project), and painting is under...

DSCF1178 - GMC jump seat, painting.jpg
42 hits | 58.02 KB | Posted: 6/25/19
Skinned and painted.

DSCF1180 - GMC jump seat, painting.jpg
40 hits | 54.26 KB | Posted: 6/25/19
Combination of welded seams and tacked inner edges on the sheet metal. It proved difficult to get t...

DSCF1182 - GMC jump seat, complete.jpg
41 hits | 38.67 KB | Posted: 6/25/19
Finally back together!

DSCF1183 - GMC jump seat, installed.jpg
41 hits | 65.03 KB | Posted: 6/25/19
Installed. The sheet metal was so messy to work with, I scrapped the original idea of framing up th...

DSCF1184 - GMC jump seat, installed.jpg
46 hits | 41.94 KB | Posted: 6/25/19
Installed.

DSCF1646 - 40-20-40 pass seat belt.jpg
46 hits | 24.3 KB | Posted: 11/15/19
I finally found one of the 40/20/40 seat belt receivers, needed to clear the jump seat base. Pictur...