M42club.com - Home of the BMW E30/E36 318i/iS

DISCUSSION => Engine + Driveline => Topic started by: Blip Bavarian on May 22, 2009, 03:29:29 PM

Title: 318is and LSD swap?
Post by: Blip Bavarian on May 22, 2009, 03:29:29 PM

is the swap from a small case diff to a med case diff a direct swap.  Do you use all of the same hardware from the small case??

will a diff from a e34 be a direct bolt on replacement??  Sorry for all the noob questions...

Title: 318is and LSD swap?
Post by: 1991 E30 M42 on May 22, 2009, 04:29:21 PM

the med case is a direct swap and uses the same hardware, i think the e34 diff will fit if you use an e30 cover

Title: 318is and LSD swap?
Post by: Blip Bavarian on May 22, 2009, 05:53:19 PM

the  cover from my small case?    anyone else know about a e34 diff in the e30?

Quote from: 1991 E30 M42;72271

the med case is a direct swap and uses the same hardware, i think the e34 diff will fit if you use an e30 cover

Title: 318is and LSD swap?
Post by: 1991 E30 M42 on May 22, 2009, 11:04:03 PM

the cover from a med case, i am not 100% sure that the e34 diff swap will work, so do the research

Title: 318is and LSD swap?
Post by: fabe on June 02, 2009, 09:06:45 AM

from what i know there are 2 versions of the E34 rear diff casing. Do check properly..
And yes, if you get the right E34 rear diff, just need to change the rear cover from an E30 med casing... and also the output flanges needed to be changed too... I've done it before.....

Title: 318is and LSD swap?
Post by: fabe on June 02, 2009, 09:08:44 AM

deleted.. double postin...

Title: 318is and LSD swap?
Post by: xwill112x on June 02, 2009, 09:15:13 AM

just buy a 4.10LSD from a 325iA and swap it in, then your good to go. A m42 probably wont tear out one of those.