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drip
Samba Member
Joined: March 02, 2004
Posts: 140
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 Posted: Mon May 27, 2019 10:50 am Post subject: Trans difference? |
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Does a 1981 air cooled trans have the same gear and r/p gear ratio as a early 80’s water cooled trans?
The a/c trans code letters and date numbers are DK 29 06 1
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MarkWard
Samba Member
Joined: February 09, 2005
Posts: 17153
Location: Retired South Florida
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| Posted: Mon May 27, 2019 11:18 am Post subject: Re: Trans difference? |
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The air cooled transaxle has a slightly taller final drive ratio. Others will offer more detail. The vanagon had 2, 4 speed transaxle vesrsions. The early 091 and the later 091/1. The external differences are more of a fittment issue with the early and late vs the internal gearing.
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drip
Samba Member
Joined: March 02, 2004
Posts: 140
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| Posted: Mon May 27, 2019 12:27 pm Post subject: Re: Trans difference? |
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I’m just fixing up a 82 diesel Westy. Now has a 2.0L cis injection engine. But still has the diesel trans l put tall 15” tires/wheels on it but I’m thinking the diesel trans should be changed out. It’s in great condition but I’m sure it will be like driving a gravel truck from 1st to 2nd gear.
I’ll pick up the a/c trans then and change the bell housing. I think I may have to shorten the input shaft?
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MarkWard
Samba Member
Joined: February 09, 2005
Posts: 17153
Location: Retired South Florida
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| Posted: Mon May 27, 2019 1:00 pm Post subject: Re: Trans difference? |
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You can swap your input shaft when you swap the bellhousing. The diesel gearing is very short compared to the air cooled and wbx transaxles. Externally, the diesel and air cooled transaxles are interchangeable. They do have different transmount brackets, but the mounting is the same. Use the bracket you have now.
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82westyrabbit
Samba Member
Joined: March 02, 2015
Posts: 969
Location: Ma
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| Posted: Mon May 27, 2019 6:20 pm Post subject: Re: Trans difference? |
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| My van started life as a 82 diesel. It now has a 2.0 gas engine with an air cooled transmission. The air cooled transmission is geared just a little too high in my opinion. The diesel transmission is geared way too low. If I had to pay for a transmission I would install WXB transmission. Some where here I give rpm versus speeds for my van. I don’t remember them off the top of my head. On the highway it’s great, but first gear is a little too high when taking off on hills or getting into camping spots. John |
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