WTB 1978 Three spd trans

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Mar 28, 2015 | 07:32 AM

gravydude

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From: Bryan, OH

WTB 1978 Three spd trans

I'm asking here because the WTB area wouldn't let me post.

I have a 1978 F-150 300ci "Three on the tree" with a bad transmission.

Looking for a replacement trans.
I have a one piece drive shaft. I believe these tranny's were only in 78 to 85?

Cheers,
Joe

Mar 28, 2015 | 07:51 AM

gatorfor88

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From: Panama City

https://www.ford-trucks.com/forums/1...-79-parts.html

Mar 29, 2015 | 10:29 PM

Ozzie H.

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From: S.E. Louisiana;so far USA

Quote:

Originally Posted by gravydude

Hollander says that in 1978 the F-150 could have had one of four possible 3 speed manual transmissions. There were two different case lengths, each of which could have had two different extension lengths.

The 9-1/4" case was called light duty, while the 9-3/4" case was called medium duty.

Mar 30, 2015 | 07:10 AM

gravydude

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From: Bryan, OH

Dang! Good to know Ozzie.

Where do I measure this? Is this the length of the trans minus the bell-housing & tail shaft?

Cheers

Mar 30, 2015 | 08:13 AM

Shakes the Rat

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I don't know where you are from but if you are close to south east Texas, I have the three speed I pulled from my 76. I pulled it to swap in a five speed. I normally make a run to the scrap yard once a month but I hate to junk good parts so this one is sitting around taking up space. If you can pick it up its yours.

Small block bellhousing
The codes on the tag are
RABAC DG29
D5TRLA7586

Mar 30, 2015 | 08:37 AM

Ozzie H.

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Posts: 1,207

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From: S.E. Louisiana;so far USA

Quote:

Originally Posted by gravydude

Dang! Good to know Ozzie.

Where do I measure this? Is this the length of the trans minus the bell-housing & tail shaft?

Cheers

I am assuming that is correct. If you measure yours and it agrees with one of the numbers we will know for certain. If you also measure the tail shaft I can provide the interchanges shown.