M30/E30 Trans mount assistance

[peerless]

Hello all. Helping a friend Ryan get this nasty M30 all wrapped up and am running into a few problems. One of them is the trans mount.

We are running a 265 and are having difficulties locating the proper cross member. I found one here on the board in a picture but I cannot find out what type of chassis its from. We have the exact transmission pictured below, it did not come with the damn mount.

EDIT: Found this mount in the junkyard today and purchased it. It does not work, too wide for the E30 chassis.

For people considering the M30 swap, George Graves has proven the M3 trans mount system works perfect.

[george graves]

I used a e30m3 tranny mount with my G265. Worked perfect.

[peerless]

Found a old 320 in the junkyard, thinking the crossmember might work. We didn't pick it up because we weren't sure.

Just found out today this does not work. I tried a single mount E21 323 mount, no dice.

[george graves]

red x - no way to tell until you try it really. I can only tell you what I used. Maybe someone else knows more about this.

[speedhop]

Ummm...now that I look further at that pic, the crossmember looks upside down or custom. Maybe he's got some knowledge that we don't have....damn.

[peerless]

I looked at the M3 cross member and that has the mount sitting at an angle, I need the mount to be flat or do I also need to by the rear trans mount also?

I have 2 brand new poly mounts and if I could just find out what the mount is above in the picture I would be golden.

Yet no one seems to have a answer. Don't mean to rag, but I have this damn E30 right in the way with no solution to mount the trans, surely you would understand my frustration.

[euroshark]

I used a stamped steel 6 series crossmember and hogged out the holes into ovals. Other than that there were no modifications...

As for the mount above, it looks like the standard post '83 E28 and E24 crossmember. Post a WTB ad on www.mye28.com

[speedhop]

After further inspection it looks like the E21 m10 cross member will work. God knows how or why...but that might be a possibility.

EDIT: Doesn't work. Doesn't clear the rear of the tranny.

[E30SPDFRK]

Just bend a piece of metal and drill holes, it shouldn't be too hard.

[peerless]

After further inspection it looks like the E21 m10 cross member will work. God knows how or why...but that might be a possibility.

Nope, your wrong, I just tried the E21 323 cross member and its not wide enough and it mount pedestal hits the rear case of the transmission.

Looks like a custom mount is the only way to go at this point. Oh well.

Would still like that mount above, I just can't find it on real oem.

[george graves]

I used a e30m3 tranny mount with my G265. Worked perfect.

Can you not source a e30 m3 mount?

[speedhop]

I think we have one that might be available for test fitting. We'll make a move after that.

[peerless]

Well a member from Australia has found the cross member pictured above with a part number and I have ordered one from the dealer. $25 and they surprisingly have about 21 in stock at the local distribution center in Ontario.

I will pick it up next week and see where that takes us.

[Madhatter]

For anyone that needs future reference.

Bmw are arseholes with old part numbers, they dont include the prefix, so when you look at old part numbers, they tend to be 7 digits.

Part number on my cross member, 11 75 731, the mounts are 11 75 732.3.

So with a bit of trickery, the part number becomes 23 71 1 175 731
My M30 transmission in question came from a 1981 633csi.

Here you go robert, http://www.realoem.com/bmw/partxref....5731&showus=on

Edit: Pics of said member.





I could remove the other bush from the cross member but that bastard on the left wouldnt come undone with my 250 ft/lbs 1/2" gun on it, so its on TIGHT!. Both bushes were there though, you can see the outline of the other one.

[george graves]

OK - I'm all about helping people, I've said it again a few times....But really - WTF?



^my car.....

The E30M3 tranny mount is a perfect mount with a e30 m30 with a G265.

See above - that is an m30 in an e30 with a G265....It's my car. Perfect fit - So, I kinda know....

So - there it is....