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Tranny swap tips please


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Hopefully this weekend I will be swapping my going south auto for a 4 speed dr.If anyone out there could chime in with tips suggestions or helpfull advice I would be eternaly greatful.Oh yeah its coming out of my Turbo Brat and the 4 speed is coming out of an 84 wagon.Thanks,Dave.

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Hopefully, you won't have too many issues with the tranny tunnel, but there's a couple of small things you will have to do. For one thing, the 4WD lever mount does not exist on your car, so you will have to drill out the spot welds, and bolt it down to your tunnel after making a slight indentation for it with your hammer:

 

http://usmb.net/gallery/albuo55

 

The shifter hole will need to be enlarged a bit. Make a template from your donor car so you know the size and shape to cut it to. In one of the pictures above you can see where I did this to my car (it was 2WD, so yours will look slightly different, but you get the idea).

 

The auto tunnel's are bigger than my 2WD tunnel was, but you may still need to beat on the tunnel like I had to in order to get the tranny all the way up into it. You can also add some washers to the tranny x-member, and the radius rod plates to make a mini body lift just so the tranny does not rub the tunnel.

 

You should probably replace your clutch and your rear main seal while your in there, as it would suck to have to pull the engine after you're done with the tranny.

 

Oh - and do this to your shifter while you have it out, shifting will be much tighter, and you will not have to worry about it again. Also much easier to do with the tranny out.

 

http://usmb.net/gallery/GeneralDisorders-Subaru-Pictures/shifter_play_fix

 

GD

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Thanks GD.The first thing I am going to do after I get the tranny out of the donor car is fix the sloppy shifter.I had to do that in an 84 wagon I had and what a difference.I hadn't thought about hte rear main seal though,sounds like a really good idea.I had been told the tunnels on turbo cars were larger then NA cars is this bunk.Well thanks for the suggestions they will come in very handy.Dave.

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The tunnel on the turbo's may very well be larger. The floorpan sheet metal is a different part number for every model / transmission type. I could imagine that they made the tunnel bigger to accomidate a turbo exhaust, but I have no way of knowing for sure. The tunnels also changed by year of manufacture, and there is no way to know what you will find in there. Just have to rip into it.

 

Rear main's are cheap, at less than $10, and even if the clutch is good, at least change the bearings. Just remember on the seal to use silicone on the outer edge, and grease on the inner edge. Oh and remember to use locktite on the flywheel bolts to seal them off from the oil passage they are drilled into.

 

GD

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