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E21 Compatibility Swapability Probability


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Hi guys, 


I'm new the forums here, my current car is an '81 320i (set up like an is model). 


I'm looking at buying a really clean early 2002 with no motor or drivetrain (it's an automatic model, so my 5spd should fit nicely) 


I want to know how much of my suspension & steering will swap in. I have a really hot tii M10 already and I was planning on swapping over all my CIS FI (that I'm not too worried about). I don't know if my rack & pinion will bolt in...I have all new urethane bushings, bilstiens, H&R springs, & volvo 240 brakes - I want to keep as much of that stuff as possible. 


Did a few searches and couldn't find much on this specific issue. If its been documented pls send the link.


I should be starting on this in the fall/winter - I'll be documenting the process.  





'81 320i - the project so far...2L stage 2 motor, Bilsteins and H&R's, urethane bushings, BBS basketweaves, volvo 240 calipers...

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You probably couldn't find much on the subject because not much (at least how much your hoping for) is a direct swap over. 

Things to swap (some will take a little extra, not just bolt in.  :
-Volvo Brakes (if the struts in the 2002 are normal and not Tii, also grab the hubs)
-Rear 250mm Drum assembly
-LS Differential and inner CV joints
-Steering Wheel
-Trailing Arm Bushings

Things that wont "bolt" on.
-Suspension (backwards step from the 2002 design anyways)
-Steering (is possible, see a few threads below)

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