..SSR.. Posted September 5, 2008 Share Posted September 5, 2008 This is a review and semi comparison of the new MFactory LSD for the non-LSD B16/LS transmission. This will be a two part review with this first part looking at the quality and the second part reviewing the performance and operation once installed. Upon arrival the diff looked great, no damage from shipping and no obvious manufacturers defects. To compare quality against I have two other differentials. One is an OBX LSD for the 40mm D series and the other is a Quaife LSD for the 35mm D series. OBX's quality speaks for itself (poorly). The bottom flange has a manufacturers defect. It appears the flange was not completely machined or was affected by a chemical or some other object. The quality on the Quaife is good, but the unit I received has a manufacturers defect. The bottom flange is 47 ten-thousandths too small, allowing the new OEM bearing to slide on and off with no force needed (set it on the flange and it falls completely into place). Due to Autotech no longer being the US distributor it appears they are not going to uphold their lifetime warranty (even though the new US distributor has a 35mm D series Quaife in stock whereas Autotech does not) by replacing the diff, instead only issue me a refund and let me pay the higher price the new distributor is selling Quaifes at. The MFactory diff had no manufacturers defects. I disassembled it completely and inspected it (not required and definitely not recommended by MFactory, only reason this was done is due to this unit is being used for testing). The internals of the diff look great. No burrs, nothing missing, washers installed correctly, etc. I dont have a OBX or Quaife B16 LSD to compare it against, but it appears MFactory has taken steps to remove unneeded weight from the differential. Reassembly went smoothly with no problems after cleaning the threads up to remove the Loctite. I'm very anxious to install this and do the actual testing on it. Not expecting any problems as the other test units have held up fine in road racing and 900whp drag racing. Onto the pictures. MFactory on left, Quaife in the middle, and OBX on the right. Manufacturers defect on OBX Showing how the gears mesh up for those who have never seen the internals. Top axle (not visible as it is in the case still) is the same as the bottom axle (visible). Outer gears mesh up 50/50. Gears are very light, finish is very smooth with no burrs or flaws anywhere on them. Top axle gears Disassembled and laid out. Link to comment Share on other sites More sharing options...
cmgogo Posted September 5, 2008 Share Posted September 5, 2008 looks like hey do some awesome machining, very clean (btw love the pointer) cant wait to see how she tests up. let us know. Link to comment Share on other sites More sharing options...
..SSR.. Posted September 5, 2008 Author Share Posted September 5, 2008 Pointer is straight up USDM. Not expecting any problems during testing. I possibly might be doing testing on the B18C, H22, and K20 units as well. Link to comment Share on other sites More sharing options...
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