Transmission

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paradox
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Joined: Wed Jan 01, 2003 3:01 am

Transmission

Post by paradox » Thu Jan 02, 2003 1:47 am

I have always wanted a bus but have only, and still do own a 66 & 68 beetle. A buddy of mine has a 75 bus and the transmission just went out. He is selling it to me for next to nothing. It has a 2.0l type 4 in it and I was wondering what transmission to put in it. I will mainly drive freeway and would like something I can cruz at a good speed with. Any suggestions would be awesome.

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Bookwus
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Transmission

Post by Bookwus » Thu Jan 02, 2003 12:02 pm

Hiya Paradox,

Welcome to the ST forum!

I'm a stock-kinda guy, so you might be able to guess where I'm headed with this topic. Get yourself a "stock" replacement. The boys at Wolfsburg gave this transmission business a lot of thought. This is the way they went.

Trannys underwent a change in the gearing setups in 72 to allow for the more powerful Type 4 engines. I believe (check me on this one guys) the number designation for the 72-79 tranny is a 002.

That's the beast you need. You have three options here. You can go out and "boneyard" one. You can buy a rebuilt unit. Or you can have your present tranny rebuilt.

Pablo
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Transmission

Post by Pablo » Thu Jan 02, 2003 12:33 pm

The '68-'75 were 002, with the longer 091 coming out in '76. The strongest 002 R&P is found in the '74-'75 pyramid case trans (although the pyramid case does not guarantee that it has the 4.86 R&P).

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Marc
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Transmission

Post by Marc » Thu Jan 02, 2003 12:34 pm

bbs/NonCGI/Forum28/HTML/000377.html bbs/NonCGI/Forum28/HTML/000351.html

The overall final drive ratio in 4th didn't change significantly until `74 (and there were later transmissions that had the "short" gearing as well, but it's unlikely that you'll find any in the US). For a 2-liter you definitely want the taller `74-up gearing - my first choice would be a `76-`78 "091" trans: http://sandlizrd.baja.com/gears.htm

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amskeptic
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Transmission

Post by amskeptic » Thu Jan 02, 2003 10:05 pm

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Bookwus:
<B>Trannys underwent a change in the gearing setups in 72 to allow for the more powerful Type 4 engines. I believe (check me on this one guys) the number designation for the 72-79 tranny is a 002.
</B><HR></BLOCKQUOTE>

The transmission gear ratios were not changed at the introduction of the Type 4.
Prefix on serial # CA
3.80/2.06/1.26/0.82 & 5.37:1
used from 8/67 through 8/73

In 1974 and 5, the rear axle ratio was changed to 4.86. Prefix on serial # CM or N
Five rib case, weak reverse.

In 1976, the rear axle ratio was changed
to 4.57, and the 4th gear ratio was "shortened" to .88. This actually took out some of the long-leggedness.
Six rib case.

Find out if you actually have the 1800cc FI
engine that came with the Bus, or a bona fida 2000cc. Use the CM/N trans with the 1800, and the later 4.57 with the 2000.
The 1800 was designed for rev-generated hp with its nice 66mm short-stroke and 4,800 rpm hp peak, the 2000 was designed for torque-generated hp with the 71mm stroke and reduced-to 4,200 hp peak.
Colin




[This message has been edited by amskeptic (edited 01-02-2003).]

John W. Kelly
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Transmission

Post by John W. Kelly » Sat Jan 04, 2003 8:08 pm

Check the obvious things too. Loose cv's, clutch problems, ect. Many times we get lucky and find something simple. When you say the tranny "went out" what exactly has happened?

alsehendo
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Joined: Thu Nov 29, 2001 3:01 am

Transmission

Post by alsehendo » Sun Jan 05, 2003 5:10 am

Let us know the symtoms maybe someone can help, for example if it just wont shift but clutch seems to work the linkage may have worked it's way out of adjustment.

If it's a 75 I believe you need to look for a trany with 5 ribs across it, before that they had 3. This is a visual clue you can use when visiting the bone yard.

Good luck--if you got a nice bus for the price of a tranny your very lucky!

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Bob Ingman
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Transmission

Post by Bob Ingman » Sun Jan 05, 2003 11:32 am

Paradox, this is some information on the trans. Just scroll down to The Type 2s www.geocities.com/Baja/Dunes/9702/transtalk.html Good luck. Bob Ingman

busboy67
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Joined: Thu Jul 25, 2002 2:01 am

Transmission

Post by busboy67 » Mon Jan 06, 2003 2:27 am

For all You PRE-'68 Boys, the "splits" can check out my "Transmission upgrade" I did, to a Freeway Flier, I took pictures of all of it, and documented it. So for those of you thinking about upgrading, it's well worth it! And You can do it yourself, at home! I'm just 19 years old, and I switched my tranny myself with Normal tools, nothing Fancy. Feel free to check it out. There's also other Tech tips on there for the early Bus, and some bug stuff. Peace!
James
www.geocities.com/indianavwkid

paradox
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Joined: Wed Jan 01, 2003 3:01 am

Transmission

Post by paradox » Tue Jan 07, 2003 5:22 am

thanks guys for all the replys... all the info helps, I am going to pick up the bus this weekend so then I will be able to take a good look at her. Thanks again to everyone.

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