<VV> 61 3 to 4 spd Transmission swapping

Joe White jwcorvair at aol.com
Wed Aug 8 16:13:23 EDT 2018


I should have also mentioned that, with a little bit of searching, you might find a four speed cross member. The four speed cross member is a bolt on replacement that you can install in an afternoon if you have all of the parts ahead of time. 

Check the online parts catalogs (Clark’s is a good source) for what you need. 

Sent from my iPhone

> On Aug 8, 2018, at 1:06 PM, Joe White via VirtualVairs <virtualvairs at corvair.org> wrote:
> 
> Biggest challenge is that the four-speed gearbox is longer than the three speed. Your rear cross member has a notch for a three speed so, with the four speed your engine and four speed cannot fit. The cross member will need to have the flange on the back of the cross member cut off and the cross member rewelded where the flange was cut off. It’s a bit of work, but if you have a good welding torch it actually doesn’t take that long. 
> 
> After you have modified the cross member everything is straight forward mechanical assembly. Just make sure that you have all of the parts that you need before you start. 
> 
> Joe White
> 
> Sent from my iPhone
> 
>> On Aug 8, 2018, at 11:56 AM, Matt via VirtualVairs <virtualvairs at corvair.org> wrote:
>> 
>> Way too much … torch  right input shaft for trans, etc.
>> 
>> Matt Nall
>> Sea Mtn., Or.
>> Sent from WinMail10
>> 
>> From: Patrick Murphy via VirtualVairs
>> 
>> Got 61 wagon. Blew clutch plate yesterday. Since I'm dropping power train,
>> what's involved in swapping 3 speed for a 4 speed?
>> 
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