Quote:
Originally Posted by Ryan13
Following the thread, but have a slightly different version of the question. I don’t post much, but some of you may have seen my build thread on a 128i track car. My wife has been running it for 2 years now, but I can’t seem to get her to successfully learn how to heel-toe, so I’m looking for a solution.
Potential “fix” is to get a 135i. I’m looking at a 2008 with steptronic. I believe the diff case is the smaller 188mm, similar in size to the 128i size. I also understand both are bolted...I know this is a 4 bolt on the 128, not sure if the same 4-bolt is on 135.
I purchased a 3.73 LSD for the 128 when I built the car. Will that possibly fit in the 135 steptronic? Is it just a flange change?? How difficult???
I know I’m going in reverse direction to this thread. Just trying to find out if I can reuse the differential in this 135i build. I know the easy answer...more heel-toe.
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A lot of questions here. Driver mod! Keep your 128, you will not get your money out of your build.
4 bolt 128 diff does not match to the 135 drive shaft. The “4 bolt” refers to the input flange not the actual bolted diff inside the pumpkin. The small 135 auto diffs have bolted gear rings to the diff.
Hope this helps, keep the 128 and practice the heel toe. Try just a roll over when on the brakes. There are tons of videos. I do the roll because of my foot postition because broken bone in my ankle from motorcycle racing.