std equipment 250 engine(CS models std equipment) synchromesh SM318: 2.94, 1.68, 1.00, rev 3.14
M17 fully synchronized SM326(292 and larger engines- 2.85, 1.68, 1.00, rev 2.95
warner T16D(used with 396/402 in the 10 and 20 series trucks and is the heaviest three speed tranny used in the trucks): 2.86, 1.72, 1.00, 2.86 rev
el caminos did get the same sm326 with the 230, 250 and 307 only,
the 325hp engine Saginaw three speeds were re-geared to: 2.54, 1.50, 1.00 and 2.63 rev
the same warner t16D was available in el caminos with 230, 250 and 307 also, but with floor shift when console was ordered,
and the T16D was regeared in el caminso with the 327 and 396 to: 2.41, 1.59, 1.00, and 2.41 rev
saginaw have seven-bolt side cover
the sm318 was four-bolt side cover
the 318 is not listed on the above listed page url
the above listed URL listings on four speeds dont match the elcamino four speeds, there were four el camino four speeds and the listings dont match any of them exactly right,
a couple are close to GM specs
Last edited by gmtrucksaddict; 08-31-2003 at 09:40 PM.
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