What's the visual diff between 3 and 4 speed (1 Viewer)

[Degnol]

I'm going to look at some driveline parts this weekend and I need to know what, if any, visual differences there are between a three and four speed transmission.
The guy who is selling them just guts the '40's and uses the frame/body with Ford running gear foe mud trucks. He never even considered what he was taking out and does not know whether they are four or three speeds. I think I can pick up one, maybe two complete drivelines, axels and all pretty cheap, but I'd like to know what I'm buying.
Hep Me.
Ed Long

 

[Poser]

Three speeds will have an aluminum top cover, and be very small compared to a four speed, which has a cast iron top cover, and is 12" long, from front mounting surface to t-case mounting surface, and will have a bulge on the right side of the housing, where the reverse gear is.
Now, if this gear is out of a 60 series wagon, the four speed trans will have an aluminum top cover, and a "split" t-case, meaning a two piece case, bolted together around the middle of it.

Hope this helps!

Good luck!

-Steve

 

[cruiseroutfit]

Here is the FJ40 4 speed

 

[Degnol]

Thanks!

 

[cruiseroutfit]

[quote author=Degnol link=board=1;threadid=9826;start=msg86727#msg86727 date=1073561950]
Thanks!
[/quote]

I would post a bunch more but I need to get them up on my webpage... but at least you know what is a 4 speed...

 

[fj40mayo]

Here's a pic of the 3 speed before I pulled it. Its not much longer than the width of the tcase. Hope this helps.