Transmission Rebuild/Replacement

Normally you don't really rebuild a manual transmission unless it is showing signs of mechanical failure like the synchronizers are worn so it doesn't shift or you have bearing noises internally. A way to somewhat tell is to do a fluid drain and look for metal on the drain plug and in the oil. There will be some but if it comes out looking like a glitter ball then you may want to have it looked at. As for the cost, that depends a lot on where you are and what parts need to be replaced. If you replaced all the bearings and synchro's the kit runs about $600.00 so with labor a rebuild would probably run about $1,500.00, not including removal and replacement. To replace it with a re-man unit you would be looking at about $2,000.00 for the transmission itself. Now if you have a shop that does them all the time do it, they would likely replace just the worn or damaged parts so it could be less money.

The issue with DIY is that you likely don't have the pullers and press needed to take the various sections apart. If you have those and the service manual for the transmission it is possible to do. You can buy the parts kit from a few places. If you wanted to go that route I'd suggest going and getting a used transmission from a salvage yard, doing the rebuild on it and then swapping the entire thing in. That way you don't tie up the vehicle for longer than necessary and you still have the old transmission in the event something wasn't just right in the rebuilt one.

If you decide to go the DIY way you might want to get the years subscription to one of the outfits like Mitchell or Alldata and hunt up some videos on the rebuild and see what it entails. That would give you an idea of the process and any pitfalls that may be there.
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