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Re: [oletrucks] Manual to Automatic Part I

To: J Forbes <jforbes@primenet.com>
Subject: Re: [oletrucks] Manual to Automatic Part I
From: ADvent@thuntek.net
Date: Sun, 30 Jan 2000 16:44:30 -0700
why not go all out for a 700r4? and have 2 more gears. buich had a switch
pitch TC for some of their big blocks, it was t400. its nice to have that
extra slip when you need it, too bad you lock one up, too new mexico jim

J Forbes wrote:

> Mike--
> That tranny may be a SuperTurbine 300, which is a 2 speed, based on the
> Powerglide design, but in a case that looks more like a TH 350.  Are
> there 4 bolts holding on the tailhousing?  Does it have a vacuum
> modulator sticking out the back?  Is there a round stamped cover with 3
> bolts holding it on, on the drivers side towards the rear?  If all these
> are true, then it's probably a ST300.  This tranny was never used by
> Chevy that I know of, although since Pontiac used some Chevy straight 6
> engines during the mid 60s, it could have a Chevy bolt pattern on the
> front.  The tranny was used in Buick, Olds, and Pontiac midsize cars
> from 64-69, and is pretty well obsolete.  Some of them, mostly 64-67,
> had a two speed torque converter, known as "switch pitch", which can
> give you a couple hundred more rpm stall speed when activated.  The
> internals are different from a powerglide, because it uses a clutch pack
> for reverse instead of a band, and it has the fine spline input shaft,
> so it uses the same torque converter as a TH350 or 400, while the
> Powerglide uses a coarse spline converter.
> You might want to consider getting a TH350 instead...having the extra
> gear is nice, as is having a tranny that any shop can rebuild.
> Jim
> ----------------------------------------------------------
> Banjomike wrote:
> Still trying to decide what kind of transmission I have.  It has two cut
> off
> corners that would otherwise make it square, no manual kickdown, and an
> electrical plug.  It is a Chevy tranny though.
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959

oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959

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