You can do it, if you are CAREFUL ,meticulous and it doesn't hurt to be cheap. There are plenty of threads on here on how to do it. Pick a warm day, use lots of lube. I think I have done about 8 or 10 lifetime, without breaking anything.

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80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??)