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Old 05-15-2011, 12:57 PM   #13 (permalink)
Christ
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
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Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
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Any D series transmission wil bolt to a D-series engine, b to b, etc.

If your 98 has a D series, either the HF or VX trans will bolt in, with one or more caveats (always something...) The HF has a cable actuated clutch linkage. The hydro setup won't blt on, but it can be modified easily to work reliably.

Axles- the Trans sides, I believe, are ask the same for 5 speed D Series trans, but if they're not, you may need to swap inner cv joints. I strongly believe your axles should fit right in.

Mounts- the bulk of the engine/trans weight is supported by the trans, which has 2-3 mounts, where the engine only has one. Your existing mounts may bolt to the new (older) unit, or not. I can't remember.

Clutch- Your original might work, and the pressure plate/diaphragm definitely is ok, but the friction disc may not work, depending on which trans you get. 88-89 HF have a different spline count in the input shaft than 90-91, and no idea about the VX trans.
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