take it to a mechanic.
It's a good idea.
$2800.00 With Sensors, Torque Converter & Hard Parts
The gear is probably worn. About the only thing you can do is either rebuild the transmission or get a replacment.
i want to know how to rebuild a manual transmission for a 1990 Geo Tracker 4x4
It depends if it's a 2wd or 4x4. It can cost any where from $2000.00 to $5000.00
on e bay ,look for the service manual,i have one.
If it is slipping in those gears then it is time for a rebuild. no EASY FIX
There is GREAT detail and alot of it to walk you through that job it would take forevr to do. You need to BUY a GOOD transmission book and read and follow it.
A lot depends on your location and the type of rebuild you're planning. In my area of the mid-atlantic states a stock rebuild from a transmission shop including installation would run about $1500.
15 40 rotella
how do you rebuild 1990 bonneville transmission