| Also known as | I31A, T1878 |
| Diagram | Fig. 9 — GEARBOX OUTER COVER AND LEVERS · ref 13 |
| Subsystem | gearbox |
| Listed in parts books | 1964–1970, 1974 |
RETURN BUTTON T100 SHIFT
Return button for the gearbox outer cover shift quadrant, found in the gearchange linkage.
57-1878 is the return button for the gear shift quadrant, listed in the parts books under the GEARBOX OUTER COVER AND LEVERS section. It's a small piece that works with the gearchange mechanism on the outer cover, part of what brings the shift lever back to its neutral position between gear changes. This part shows up in the catalogs across a run of years in the late '60s and into the early '70s under this number and its earlier alias, T1878.
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If your parts book still uses the old-style numbering, you may see this same button referenced as T1878 or I31A rather than 57-1878 — all three point to the same physical component. It's a low-cost piece that's easy to lose track of when the outer cover comes apart for other work, so it's worth checking condition while you're in there.
We don't have extensive detail on this one beyond its place in the gearchange linkage, so if you're not sure this is the exact button your cover needs, give us a call and we'll confirm before you order.
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