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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > DIY Guides > DEFIV Differential Lock-Down DIY



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DEFIV Differential Lock-Down DIY
Published by robc1976
02-19-2013
DEFIV Differential Lock-Down DIY

Note: Not responsible for any damage to you or your car,

this worked on my car so will work on yours. Thi kit as been tested over and over countless hours by

Rick@DEFIV. If it doesnt fit you did something wrong.

***This tutorial assumes you know how to get your car secured on jack

stands, if in doubt do NOT attempt this DIY!

Suggestions:

Do NOT use a torch to remove bushings, it is not needed and can deform subframe amd make install of bushing

appear off...they are with in .001" tolerance. They fit PERFECTLY.

Notes:

*I assume you know how to take exhaust, panels ect off.
**The design off this product is the copyrighted by Rick@DEFIV.
***You can use a hole saw to pull out bushings instead of pipe if needed.

Here is the work of art, this kit really impressed me with how close everything fit....I can't imagine the testing

involved to get this to spec. Rick Has some of the best customer service in this bussiness period!



[/b]Removal of differential (I had mine out for wavetrac so I took as many pics as I could):[/b]










Removal of "Front" (smaller)bushings:








Removal of "Rear" (larger) bushing











Installing bushings


















Installing Diffetrential/half shafts and driveshaft back in car, some steps are left out since it is basically

reverse order:
















Note on driveshaft installation: Tighten in order below!
A. Insert nut
B. Guibo
C. Center support bearing








4th link bushing installation:











I hope this is of help to you guys!
__________________
JB4 G5, WEDGE flash, Walbro 455 LPFP, HFS-4 meth kit 4-AN SS lines, BMS OCC, RB turbos W/3.5 N20 sensor, RB valve, BMS DCI, 3" AR Dps, Custom OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms W/upgraded bushings, M3 Strut Brace, M3 front sway, Meyle HD tie-rods, HPA rear toe arms, Wavetrac LSD, DEFIV kit, Ohlins R/T Cois W/12KG swift springs, Power-Flex subframe bushings, stoptech rotors, Rogue Tranny Mounts, Morr VS8.2 rims 245/295
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  #1  
By Rotary Rasp on 02-28-2013, 10:55 PM
Excellent write up!
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  #2  
By robc1976 on 02-28-2013, 10:57 PM
Member reviews
Difficulty [ 1 = Difficult ]
60%60%60%
3
Cost [ 1 = Expensive ]
40%40%40%
2
DIY Clarity [ 1 = Not clear ]
100%100%100%
5
Average 67%
Quote:
Originally Posted by Rotary Rasp View Post
Excellent write up!
Thank you!!
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  #3  
By Sniz on 03-20-2013, 08:45 PM
damn thorough well done
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  #4  
By robc1976 on 03-20-2013, 08:47 PM
Member reviews
Difficulty [ 1 = Difficult ]
60%60%60%
3
Cost [ 1 = Expensive ]
40%40%40%
2
DIY Clarity [ 1 = Not clear ]
100%100%100%
5
Average 67%
Quote:
Originally Posted by Sniz View Post
damn thorough well done
thanks man!
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  #5  
By SneakyDeeky on 03-24-2013, 12:04 AM
Legit write-up! Thanks for taking the time to educate the rest of us.
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  #6  
By robc1976 on 03-24-2013, 01:12 AM
Member reviews
Difficulty [ 1 = Difficult ]
60%60%60%
3
Cost [ 1 = Expensive ]
40%40%40%
2
DIY Clarity [ 1 = Not clear ]
100%100%100%
5
Average 67%
Quote:
Originally Posted by SneakyDeeky View Post
Legit write-up! Thanks for taking the time to educate the rest of us.
thanks man!
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  #7  
By mrbillytalent on 03-24-2013, 04:06 PM
Be careful with the part number for the Guibo bolt's nuts. He lists a 'kt' at the end however the parts number did not pull up for me. Just remove the 'kt' and it will give you what you need.

Thanks for the thorough write up
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  #8  
By robc1976 on 03-24-2013, 04:25 PM
Member reviews
Difficulty [ 1 = Difficult ]
60%60%60%
3
Cost [ 1 = Expensive ]
40%40%40%
2
DIY Clarity [ 1 = Not clear ]
100%100%100%
5
Average 67%
Quote:
Originally Posted by mrbillytalent View Post
Be careful with the part number for the Guibo bolt's nuts. He lists a 'kt' at the end however the parts number did not pull up for me. Just remove the 'kt' and it will give you what you need.

Thanks for the thorough write up
weird, I read them right off the pkg.
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