![]() This should be fixed and remedied after the bearings are pressed on but before installing the diff into the tranny. I also found that if you tryĪ different clocking of the axle some fit looser than others. This can be solved by using a brakeĬylinder hone to enlarge the hole slightly if the axles are too sung. After the bearings are pressed on the holes are distorted. This occurs because the differential housing is made of a softer metal than he stock diff. Some people have experienced axle fitment problems after pressing on the differential bearings. The Neon diff pictured can be held very securely this way. The side opposite the ring gear has a nice spot to clamp to on most of differentials. I based my recommendation on a few sources: Some people have recommended tightening the M8 12.9 bolts tighter specs and some looser. Red threadlocker might simply be too strong and risk bolt breakage on disassembly. Blue threadlocker will keep this from happening without risk of snapping off the bolts should the unit ever require disassembly. I did see one person that had his LSD seperate and completely grenade on him due to the bolts loosening. ![]() I also recommend using blue threadlocker (aka loctite) on them. ![]() Step 6: Put the bolts in and torque them down to 28 ft*lbs Step 4: Put the center worm gear back in.įrom the top it goes in the back side of the hole that is not like the others (around 5 o'clock in this picture) NOTE: Most Units come with equal width washer retainers but mine were different sizes (both work fine). They will fit inside of the gears like this (notice the preload is there because the two gears are held apart by the belleville springs): If you are talented you can put them all in at once. Step 3: Place the thick gear over the washers (it will stick up past the top of the inner retainer if assembled properly to provide preload) Step 2: Place the stacked washers inside of the gear. Step 1: Place the thinner of the two gears inside the center retainer. Here is a picture of the inside of the OBX with the upper worm gear, inner gears, and washers Note: FWD differentials have the gears in the opposite configuration as a RWD differential because they spin in the opposite direction! Just make sure to put everything in the way it came out and everything will be fine! :) They can be upside down but the top and bottom helical and sun gears are cut in opposite directions and must be installed in the correct positions. When disassembling the helical gears need to stay on their original side. Here is a step by step process for replacing OBX belleville washers: I will try to dig up some more pictures from over the years but only a few are required to see that they should be replaced. There is a small gallary of broken washer pictures that customers have sent me at the bottom of this page. I could even see the grain in the metal where it cracked! I tested a replacement by smacking it 10 times in a row with increasing force and only slightly bent it. I tested them with my 2lb sledge by smacking one of the originals and it broke on my first medium impact swing. I have heard of them arriving DOA cracked all the way through. When I say they are poor quality I mean it. These washers really need to be replaced. ![]() They won't stop the diff from working if they crack but they will no longer preload the axle and things are likely to be very noisy. Please also see my BC Coilover Page for your suspension needs.Īs we all know the belleville washers in the OBX diff seem to be cheap and prone to cracking.
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