Quote:
Originally Posted by DorkMissile
My best friend at General Motors Prooving Grounds in Milford, MI and works in the calibration / R&D department.
When I asked him about the clunky shifting, he said "Just switch it to Syncromax or Redline, thats what everyone here does that owns a Tremec trans".
GM doesn't even make the transmission and they didn't design it. They fill it as absolutely as cheaply as they can with the same fluid they put in any other manual transmission.
There are MANY people on this forum who have done the same thing and it fixed their issues.
Tremec uses composite syncros which means you have to use an ATF without any detergents in it (the detergent will make the syncros swell), which means most of your Dex4 ATFs CANNOT be used. That is why GM recommends DEX3, which is non-synthetic. Not because it is their best option, but because it won't ruin the syncros.
The SyncroMax is a full blown synthetic lube with no detergent.
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I sincerely don't mean to sound rude, but I posted this for Al and his team to answer. I'm well aware of the general consensus on this forum.