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79 300d transmission issues - flaring/misengagement

Submitted by lanend@gmail.com on 26 April 2010 - 3:49pm.

Just want to verify these issues are covered in the new guide for pre-80 transmissions...just had the transmission throttle linkages adjusted and added the recommended LucasOil. After a few hundred miles, the transmission now flares between 2-3rd and redlines for many seconds before a shift from 1st to second (but only sometimes). It also seems to engage two gears simultaneously sometimes for a short time.

This is the pre 3-2 valve transmission...so it doesn't have a vacuum modulator, does it? I also noticed, when inspecting, it leaks out the passenger side through an adjustment(?) bolt that has five copper crush washers shoehorned in there where I would think a locknut should be if it is for adjustment of a band. The inconsistency of symptoms indicates to me it may be a modulation issue of some kind.

Thanks in advance.

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May or may not help

26 April 2010 - 7:59pm
admin

My transmission tuning manual may or may not help you solve your shifting problems. You could have a combination of valve body problems and worn clutch packs / brake bands. The manual does cover modulation pressure adjustment on the non vacuum controlled transmissions from 1969 to 1979. It also covers how to adjust the reverse band that you are referring to.