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      11-24-2019, 09:28 PM   #1
Age1000
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Can I install my LSD from my 130I in a 135I

Hi Gents
Im pondering changing my 130I to 135I coupe, my issue is I have spent a lot on track mods for the 130I, the majority of which will bolt up to a 135I. However I have fitted a 125I (3:46) LSD fitted to the 130, question is can I use this in the 135I, how will the ratio be/feel?
I could also swap out the the drive-train parts if needs be as I will own both cars at the same time.
Both cars are manual.
Thanks in anticipation.
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      11-24-2019, 10:25 PM   #2
duder13
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Yeah, lots of us use an LSD with a 3:46 ratio on the 135i.
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      11-25-2019, 07:55 AM   #3
ShocknAwe
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Quote:
Originally Posted by duder13 View Post
Yeah, lots of us use an LSD with a 3:46 ratio on the 135i.
No issues. I've had 3.08 and 3.46 LSD on my 135i and I feel the higher ratio is better.
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      11-25-2019, 08:57 AM   #4
myoneseries
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Quote:
Originally Posted by Age1000 View Post
Hi Gents
Im pondering changing my 130I to 135I coupe, my issue is I have spent a lot on track mods for the 130I, the majority of which will bolt up to a 135I. However I have fitted a 125I (3:46) LSD fitted to the 130, question is can I use this in the 135I, how will the ratio be/feel?
I could also swap out the the drive-train parts if needs be as I will own both cars at the same time.
Both cars are manual.
Thanks in anticipation.
Assuming the driveshaft flange is the same, the gearing isn't that bad. 3200 @ 80mph.
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      11-25-2019, 06:31 PM   #5
Age1000
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Quote:
Originally Posted by myoneseries View Post
Assuming the driveshaft flange is the same, the gearing isn't that bad. 3200 @ 80mph.
Yes that was one of my concerns but I assume I could swap the propshafts if I needed to, I assume they are the same length.
Thanks for all the help.
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      11-25-2019, 07:30 PM   #6
myoneseries
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Quote:
Originally Posted by Age1000 View Post
Quote:
Originally Posted by myoneseries View Post
Assuming the driveshaft flange is the same, the gearing isn't that bad. 3200 @ 80mph.
Yes that was one of my concerns but I assume I could swap the propshafts if I needed to, I assume they are the same length.
Thanks for all the help.
Has anyone told you about realoem? Website to check part numbers etc?
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      01-05-2020, 01:33 PM   #7
ornicar
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Quote:
Originally Posted by Age1000 View Post
Hi Gents
Im pondering changing my 130I to 135I coupe, my issue is I have spent a lot on track mods for the 130I, the majority of which will bolt up to a 135I. However I have fitted a 125I (3:46) LSD fitted to the 130, question is can I use this in the 135I, how will the ratio be/feel?
I could also swap out the the drive-train parts if needs be as I will own both cars at the same time.
Both cars are manual.
Thanks in anticipation.
Possible on an AT 135i only.
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