@frontside0815 PM’d me that he has a European 135i which he said may have a slightly different driveline than the US. So confirmation from someone who has done the swap in the US would help provide confirmation.
Swap 188mm auto pumpkin for 215mm? Diff cover options?
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@frontside0815 PM’d me that he has a European 135i which he said may have a slightly different driveline than the US. So confirmation from someone who has done the swap in the US would help provide confirmation.
The pumpkins are functionally the same except for a few mm on the front. This is made up for if your drive shaft is telescopic(M4 shaft is not for example). The only other notable difference between them is the diff cover, this will vary from model to model and yes, you need the right one or you'll find yourself requiring the use of spacers and extended bolts because the distance to the subframe is not the same on all models which use this diff. Also, the Z4 diff has a weird pinion snout, I don't know wtf is going on with those cars but its entirely different. It may just be a euro thing actually.
EDIT:
Speaking of euro, based on this feedback there must be some differences with euro cars and not just the Z4, their diff pinion and driveshaft-end looks different. I was selling an LSD to someone over yonder and this ended up being the reason the sale did not go through. I'm told it may actually be a stronger design, but if it works for them, I can say it works for both, so long as you're using parts which match, USDM driveshaft with USDM differential.
Perfect commentary. And FWIW @frontside0815 said his Euro 135i has a guibo at both ends of the driveshaft (transmission and diff). Suppose the more guibos the better in EU!
redacted to not linespam
So hows the 188 to 215 swap holding up? I have a line on a large case master rebuilt MFactory differential for a really great price, but my car currently has the small casing. With that in mind I'm looking for some other peoples experiences with this kind of swap.
I have a 335i with the 215 diff and i also want to install the 650i cover.
Do i also have to remove 2 or 3 fins of the cover, so that the exhaust fits?
Because i saw a picture of a 335i witch didn't had removed the fins.
But that was a LCI with the 188 diff.
Is ther any 335i driver with the 215 diff and with the 650i diff cover, who can awnser my question?
Do i also have to remove 2 or 3 fins of the cover, so that the exhaust fits?
Because i saw a picture of a 335i witch didn't had removed the fins.
But that was a LCI with the 188 diff.
Is ther any 335i driver with the 215 diff and with the 650i diff cover, who can awnser my question?
There really is no reason to switch to the large case, in fact I wish I kept the small one because there is more room for the exhaust. But its working fine, when you switch diffs the diff cover is often a different size which means you need to use spacers or longer bolts to connect to the subframe.
Nice job, glad to see people still know about this. Did you use the 15.5 mm spacer?
I am looking into getting an LSD for my E82 135 and ia ran into the 188-215 diff housing sizes so what are the pros and cons in the 215 mm housing swap on a 135 ?
I'm assuming you're an auto? In that case:
Cons:
1) Your car will be slightly heavier
2) You'll have less room for the exhaust
3) The bearings cost more to service although you'll likely never need to
Pros:
1) You can fit the 650i finned diff cover
2) It might be stronger but nobody knows
find attached some datas about Maximum torque / crown size
Hi, I was wondering if anyone could give me a little help or insight for my 135i a/t.
I recently did a 188 to 215 lsd swap and I developed a driveline (whining) noise that increases with speed. I jacked up the car and let the wheels spin while the engine was running and the car in neutral. I inspected the differential to make sure the noise wasn't coming from there and it seems quiet. I suspect it might be from the driveshaft. Any suggestions?
Thanks!
I recently did a 188 to 215 lsd swap and I developed a driveline (whining) noise that increases with speed. I jacked up the car and let the wheels spin while the engine was running and the car in neutral. I inspected the differential to make sure the noise wasn't coming from there and it seems quiet. I suspect it might be from the driveshaft. Any suggestions?
Thanks!
I was hoping someone could provide some clarification for me. My 128i has a 188 diff and I have an OEM LSD and final drive out of an E92 M3, which has a 215 diff. Am I able to put the M3's diff and FD into my 188 pumpkin? The LSD is in good condition and just sitting around from when I built my E92 race car, would be great to be able to swap it into my 128i daily driver.
Any insight would be greatly appreciated.
Any insight would be greatly appreciated.
Additionally, the E92 M3 uses a 210mm ring gear not 215 like the 335i and other cars.
