Which ratio you choose depends mainly on what your priorities are. When selecting gear oil grades take into account the climate the car will spend most of the time in and the type of driving you are going to be doing. Use the chart below for examples of the differences. I picked up a pair of e38 740iL flanges the other day. Fabricating a pair of those braces should be relatively easy and cheap with regard to material cost. Can't believe I will be first to point this out. Have you looked at the tools you will need? I'm just waiting on my driveshaft to swap mine in.
I'm going to have to get the car on axle stands and have a look myself. These numbers are for comparisons among gear ratios only, not to determine what your M5 will top out at. Be sure not to lose it or replace it with a new one. However, it appears to be turned off in your browser. Jack up both rear wheels and spin one tire.
Or you may choose to lose the variable lock in favor of a traditional clutch-type or helical diff with a set locking. Thank you so much Jim, that's awesome. It's easy to forget about the rear axle when you're considering performance upgrades but changing the gearing is in the top 3 things to do to make the car faster. I have had a good feel about and cant seem to get it? This is often due to setting your browser Security settings too high. They will fit fine in any non-M5 E39. Then releasing the handbrake and turning a rear wheel to access the remaining nuts.
I don't expect our cars to have body side mounting points, but a man can dream can't he? What good is a worn-out limited slip diff in an M car? The only reason I'd want to drop the sub frame is because I bought the whole M5 sub frame with the diff attached. But if you would like to get up into the torque curve sooner, this is your best bet. M5 Limited Slip Options There are a number of limited slip options for the E39 M5 but they fall into three groups - clutch, viscous, and helical. I havent spent much time under my car so I'm not that familiar what it looks like under there. Use the chart below for examples of the differences. I especially appreciate your gentleman who over the phone ensured me that the part was indeed in stock and would be shipped immediately.
April 29, 2017 Followup from the Pelican Staff: The fluid is here, you'll want to have about 2 liters on hand in case you spill any. Maybe some of the underbody plastic needs to be removed?? Non-limited slip open differentials returned for cores will not receive a full refund. I drive it in hot climate 50% of the year and never race the car. One question I do have is does the 540 have body mounting brackets for the M5 cross braces? I'm sorry if this seems a bit long, but I want to make a conclusive thread over everything that is required to swap the M5 lsd into its baby brother. Oil can come out and dirt can get in, don't do it.
Limited slip comes with several options from open to 75% and variable ramp lockups. I'd love to use those braces. I also had to get the longer bolts from the M5 that bolt into the subfame bolt. I did it this way. This uses a heavy weight fluid to press the plates together. I've been reading how to change this on M5Board. You don't want to use your 540 flanges in the M5 diff, they will pull out and because the C-clip lock ring will not snap into the M5 diff.
However, most M5 customers choose a shorter gear to get the engine into the torque curve sooner. It will be less work that way i would assume. Sounds good man, I'd love to hear what you find. The gear ratio determines the number of revolutions of the wheel for every revolution of the drive shaft. Nearly all of the major retailers of performance differentials use Diffsonline, even when sold under other brand names.
As the pinion gear engages with the ring gear the two sets of teeth meet. You're probably better off swapping the diff into your existing subframe and using your factory axles with out swapping the whole subframe. It won't stop until I back down the power. Or can you just unbolt the propshaft where it connects to the diff and let that end hang down? Helical diffs use multiple sets of gears instead of clutch discs and plates. So that's where they bolt to. I'm sure they will not completely cure it but will help. The packaging from your new diff can be used to return the core, saving you the hassle of sourcing shipping materials.