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Re-installing the gearbox end of the final drive shaft

2480 Views 23 Replies 10 Participants Last post by  Slicknick
Ok, despite my problem (see Abba stand and limp mode thread!) I decided to go ahead and service anyway. My now problem, having lubed the final drive shaft, I just can’t get the final drive back onto the splines. I’ve looked at every youtube channel known to man, but after five hours of trying everything (the holding up with bungee/cable tie, wiggling this way and that) the splines just won’t connect.
I’ve given up. Can anyone help who is within a reasonable distance of Bishops Stortford, Hertfordshire, or can anyone recommend a good Essex or Hertfordshire BMW mobile mechanic who will take probably seconds to do this for me? Thanks all.
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For me, the biscuit maker was keeping the engine side connection aligned while putting it in place. If you can get it started and gently turn the shaft, it will eventually go on, but getting started is the pain. Might need something you can stick in to manipulate the universal joint once it’s in position so it’s aligned.
I'm thinking along those lines. I'm about to shorten the piece of wood I'm using to allow more manoeuvrability, and drilling it to ensure I can get it out again! I'm wondering if there's a factory tool for this job
I've done it! I despensed with the wood to support the driveshaft and reverted to using a screw driver with a flat blade to manouever rhe UJ. re-lubricated, then finally it shot up the gearbox shaft, and a gently lever on the UJ delivered the final "clunk" as the snap ring engaged.

As previously stated by someone else, the solution to this issue is patience and perseverance, and a gentle touch.

Lessons learned: If you suffer with arthritis in your knees, use a bike table for this job. Sitting on the floor gets tiresome after a few hours.

Thanks for all the input.
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I've done it! I despensed with the wood to support the driveshaft and reverted to using a screw driver with a flat blade to manouever the UJ. re-lubricated, then finally it shot up the gearbox shaft, and a gently lever on the UJ delivered the final "clunk" as the snap ring engaged.

As previously stated by someone else, the solution to this issue is patience and perseverance, and a gentle touch.

Lessons learned: If you suffer with arthritis in your knees, use a bike table for this job. Sitting on the floor gets tiresome after a few hours.

Thanks for all the input.
  • Like
Reactions: 2
Thanks for sharing. I'm aware of the snap ring and have put it to the back of my mind until I can get the UJ onto the shaft. When disassembling I was surprised that the shaft moved out without hassle from the snap ring.
I have come across 2 different people saying that removing the whole swing arm is easier and less time consuming than trying to line up and seat the shaft while its inside the swing arm.. I have to replace the gaiter on mine soon and dreading the attempt. Good luck
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