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I have a getrag 240 and will be using a318i e30 driveshaft. It means relocating the center support bearing brackets, but the splined shaft means no cutting, rebalancing etc. Is the 245 that much longer than the 240 to preclude using the e30 driveshaft? Or is it the non-stock appearance of the larger diameter driveshaft and relocated center bearing that keeps people from using it? 

 

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i give up. all noob's who actually make an attempt to use the search function rather than starting the 4000th thread on a common topic and end up finding this, just order a standard length driveshaft

I measured for my 5-speed D.S. more than 3 times and still ended up having to push the rear diff all the way forward and adding (1) washer between the 3-bolt front flange and guibo. Not sure, but I b

The question is: Why not measure?

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The 245 is quite bit longer than the 240, I doubt an E30 shaft would work for that.(without shortening)

Stock smock.. its my car and its not like I'm cutting and welding and putting in stupid horsepower engines. Drilling 4 holes max and completely reversible to stock config.

The 240 is considered inferior to the 245 for swaps but is it really? Based on price point, availability of transmissions, parts and performance.. that can now be debated.

I gathered up everything I need to do a 240 swap with E30 DS for $1132.00 add a good GPS speedo and its still under $1500. that includes new trans seals, center bearing, guibo, trans mounts ,required bolts, locknuts and prefab rear trans mount (thanks BluntTech)

I would be lucky to get a hold of a serviceable 245 alone at that amount.

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Edited by tech71
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Wow my post from 2010!  And I am again about to order a driveshaft for a 5 speed swap.  Upside is, just like my last driveshaft, no need to measure squat.  Driveshaft Specialists in San Antonio did my one in 2010 and are doing one for me now.  They add a splined slip joint so you have about an inch of give with this one.  Just tell them what you need, they do the rest

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28 minutes ago, nbristow01 said:

Wow my post from 2010!  And I am again about to order a driveshaft for a 5 speed swap.  Upside is, just like my last driveshaft, no need to measure squat.  Driveshaft Specialists in San Antonio did my one in 2010 and are doing one for me now.  They add a splined slip joint so you have about an inch of give with this one.  Just tell them what you need, they do the rest

 

Can I ask what they charge?, Do they want a core?   I'm currently looking for 1 for my Gertrag 245-LSD rear

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While at Ireland, I "specced/sold" literally a couple hundred driveshafts over seven years.  Less than ten were outside of those standard specs.  Of those outside of spec most were involved in heavy accidents at one time or another.

 

I found that the chance of any issues happening would exponentially increase when a customer (usually a well-intentioned hobbiest) specced their own length.  However, as other suppliers implied, having a client spec their own length removes said supplier from any "length-related liability".  It's always easier to say "well, we made what you ordered".

 

Take that as you will, no longer have any vested interest.

Edited by AceAndrew
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  • 11 months later...

Hey guys, I know this topic has been covered ad nauseam, but I have a question about the shortening process.... i’ve tried for the Past two days to find a shop in New England that would be willing to shorten my e21 driveshaft to no avail. 
 

Most shops mentioned that because it doesn’t have a traditional U joint but instead the three bolt flange that connects it to the transmission, there is no way to balance it, as well as the fact that the shaft is a “friction fit?” (One guy tried to explain what this meant, but I still don’t really understand it if I’m honest...) meaning it will fall apart if cut open. It’s interesting because in reading most of the forums regarding doing the 5 speed swap, it seems that most refer to shortening the driveshaft as being a fairly simple process… Is it just because they have shops in their area that are willing to do so? What am I missing? 
 

The only alternative I have found is sending my driveshaft out, and for $600 a company in California will send it back rebuilt and shortened. Is Is this the  best route to take? Any input would be much appreciated. Thanks so much! 

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Hey guys, I know this topic has been covered ad nauseam, but I have a question about the shortening process.... i’ve tried for the Past two days to find a shop in New England that would be willing to shorten my e21 driveshaft to no avail. 
 

Most shops mentioned that because it doesn’t have a traditional U joint but instead the three bolt flange that connects it to the transmission, there is no way to balance it, as well as the fact that the shaft is a “friction fit?” (One guy tried to explain what this meant, but I still don’t really understand it if I’m honest...) meaning it will fall apart if cut open. It’s interesting because in reading most of the forums regarding doing the 5 speed swap, it seems that most refer to shortening the driveshaft as being a fairly simple process… Is it just because they have shops in their area that are willing to do so? What am I missing? 
 

The only alternative I have found is sending my driveshaft out, and for $600 a company in California will send it back rebuilt and shortened. Is Is this the  best route to take? Any input would be much appreciated. Thanks so much! 

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1 hour ago, Caseyjames said:

 it seems that most refer to shortening the driveshaft as being a fairly simple process… Is it just because they have shops in their area that are willing to do so? What am I missing? 
 

The only alternative I have found is sending my driveshaft out, and for $600 a company in California will send it back rebuilt and shortened. Is Is this the  best route to take? Any input would be much appreciated. Thanks so much! 

That guy was just blowing smoke to get you out the door.

What your missing is a competent shop(in your area) with the proper knowledge, 

willingness and equipment to shorten, replace joints and rebalance the shaft.  The staked in u joints dont help, thats something not seen much any more.

Portland (OR) Drive Axles used to do them until their "guy" retired.  Posts from 2010 on how easy it was to find a shop to do this are no longer relevant.

Things have changed since then, Lots of shops  today probably view the job as : too much risk, drama and probably unprofitable.

Go with someone with a track record on shortening 02 driveshafts for the 5 speed conversion. Ship it to them.

IE and Blunt can do it and what about "Driveshaft Specialists of San Antonio" mentioned above? Looks like they were still doing them as of 2019.

 

 

Edited by tech71
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the shaft is a “friction fit?” 

 

Friction welded.

 

It's pretty cool.  But it means that unlike the earlier driveshafts, the tubing is not removable from the end joint.

To shorten it, you can't take the tubing off the end joint with a lathe, you have to cut and re- weld the existing tube,

or be a rather competent machinist with some pretty specialized custom fixtures.

 

It also makes re- machining the ends more difficult.

 

t

 

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