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The P.O. of my 122s did the bw35 to m40 conversion and did a terrible job with modifying the crossmember, which I would like to fix. I find plenty of info and threads that mention modifying the crossmember but no pictures of how they are doing this. Does anyone have any pictures available that show the modification? Thanks.


Steve
 

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The P.O. of my 122s did the bw35 to m40 conversion and did a terrible job with modifying the crossmember, which I would like to fix. I find plenty of info and threads that mention modifying the crossmember but no pictures of how they are doing this. Does anyone have any pictures available that show the modification? Thanks.

Steve
Welcome to Swedespeed, Steve.

If possible post some pics of the existing crossmember so we can see the slaughter and what is remaining.

Your Amazon with OE BW T-5 AT has a trans tunnel unlike those with the OE M40/41.

This may mean that you will need to weld up something like this...

http://carphotos.cardomain.com/ride_images/1/2279/3201/5696600071_large.jpg

...then fabricate an adapter brace similar to this...

http://carphotos.cardomain.com/ride_images/1/2279/3201/5696600072_large.jpg

The car in the pic is a 122 but not with the M40/41 trans.

If you don't have welding assets it is possible to do up a crossmember using steel stock, a power hacksaw/drill/bits and forty zillion bolts/washers/spacers/nuts.

George Dill
 

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Discussion Starter #3
Currently, the crossmember is held up by four long bolts that go into the tunnel/floor of the car. There are many nuts and washers used as spacers to obtain the mounting height. If I get a chance I'll try to get a picture to post. I do have access to a welder.
 

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I just recently installed an M41 in place of my BW35. I'm just using angle iron bolted into the original threaded holes in the frame rails that moves the OEM M40/M41 crossmember by about 6". I can take some pictures if you like. Still need to take it off the car and paint it now that it's been shaken down. No welding required.
 

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I just recently installed an M41 in place of my BW35. I'm just using angle iron bolted into the original threaded holes in the frame rails that moves the OEM M40/M41 crossmember by about 6". I can take some pictures if you like. Still need to take it off the car and paint it now that it's been shaken down. No welding required.
I had been planning to do something like you describe. Since I know that this conversion has been done many times before, I was hoping to gain experience from someone else who had done this.
 

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I had been planning to do something like you describe. Since I know that this conversion has been done many times before, I was hoping to gain experience from someone else who had done this.
nogirlsatgt is a very good fabricater. Here is his Briggs&Stratton-powered unicycle with M41/OD...

http://1.bp.blogspot.com/_8ipvB_cNrbc/TQggcxs55MI/AAAAAAAAEW0/pX0qDejQBWs/s1600/IMG_3595.JPG

...and here are the other 86 pics in his 122 blog...

http://images.google.com/search?as_...=&biw=1536&bih=761&sei=dudXT5fRDIz-2QXM-oSEDw

...and the blog...

http://smallvo.blogspot.com/2010/12/background.html

...and more pics...

http://forums.swedespeed.com/showthread.php?150243-New-poster-new-blog

Steve - if possible start a thread about you Amazon so we can see pics/history, etc.

Thanks.

George Dill
 

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I had been planning to do something like you describe. Since I know that this conversion has been done many times before, I was hoping to gain experience from someone else who had done this.
I'll be cleaning the car up this weekend for my rapidly approaching wedding. I'll try and get some good pictures from the bottom side.
 

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Those pictures would be very much appreciated. You have time to do that and prepare for a wedding?

George, I will get some pictures together to post so you can see my wifes new car.
 

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Those pictures would be very much appreciated. You have time to do that and prepare for a wedding?

George, I will get some pictures together to post so you can see my wifes new car.
Wedding is still 2 weeks out. I just need to take care of a couple things with the car off the ground, so I'll already be under the car.
 

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Discussion Starter #10
Here is what I ended up building for the transmission mount. Turns out that only 2 - 5/16" bolts were holding up the crossmember. No welding required except to repair the crossmember where two of the holes were missing most of the steel surrounding the hole was missing. Nice new steel under a rusty old car!



 
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