two speed jetaway transmission

[Droldslives]

My 1968 cutlass has a two speed jetaway transmission in it and I would like to know if the two speed jetaway is the same as the GM two speed power glide? Also, is the model number for the jetaway transmission TH300? Thank you. Tim

[vegasdelta]

Hello Tim, Your jetaway is completley different from the powerglide & is the TH 300. Good luck with it. Jerry.

[joe_padavano]

Actually, to be completely correct the Jetaway is called the Super Turbine 300 (ST300) and was used in Buicks and Pontiacs as well as Oldsmobiles. Only a few parts are interchangeable with the Powerglide.

[RShepherd]

Unfortunately, it shares one annoying trait with Powerglide: the 'whine' while in Neutral or Park.

[Guest 1963starfire]

What causes the whine, while in neutral or park?

I have a '63 Starfire that does that. Is that

considered normal? What causes that?

Thanks

[rocketraider]

It's really not "normal" but with Slim Jims, "normal" can be very widely defined... <img src="http://forums.aaca.org/images/graemlins/laugh.gif" alt="" />

[Guest 1963starfire]

I know your right! According to the shop manual

on the '63 Olds in the Hydra-Matic section under

noise diagnosis:

Buzzing noise...

(possible causes)

1)T.V. valves

2)Governor

3)Pressure regulator valve

[Oldsfan]

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">It's really not "normal" but with Slim Jims, "normal" can be very widely defined... <img src="http://forums.aaca.org/images/graemlins/laugh.gif" alt="" /> </div></div>

Mine buzzes. And that's how I know it's working good. I changed the filter last year and it didn't seat properly, so it wasn't pulling fluid out of the pan. No buzzing. Also no gears. So I drained it, took a BFH to the filter to get it seated, and started to refill it. I knew I was OK when it started buzzing...

Paul