| Diagram | Fig. 7 — GEARBOX INNER COVER AND SELECTORS · ref 8 |
| Subsystem | gearbox |
| Listed in parts books | 1983, 1985 |
ALLEN SCREW 5/16UNC X 1
Allen screw, 5/16 UNC x 1 inch, used on the gearbox inner cover and E/S timing cover gears.
This is an Allen screw, 5/16 UNC thread by 1 inch long, showing up in the catalog on the gearbox inner cover and selectors, and also on the E/S timing cover gears. Both are fastener applications, so this screw is doing clamping duty holding covers or components in place rather than anything load-bearing in the drivetrain itself.
Read more
Catalog appearances put it in the 1983-1985 window, and it's a hex-socket fastener rather than a slotted or hex-head screw, which is common on these later gearbox and timing cover assemblies. If you're replacing one, it's worth checking the length and thread against what's actually in your cover, since 5/16 UNC hardware shows up in a few spots on these engines.
We don't have more detail on this one beyond the two catalog listings. If you're not sure this is the exact screw your cover needs, call the shop and we'll confirm before you order.
Sorry if we got something wrong here. If you think this information isn't correct, .