thm200-4r help
12-11-2020, 04:11 PM
#1
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Car: Trans Am "GTA"
Engine: 305 TPI
Transmission: Auto
thm200-4r help
I bought a 89 turbo ta that had not run in over 4 years. got everything working but when ti got to about operating temperatures the trans stopped shifting. I dropped the pan and it the fluid looked like mud, so I clean what I could changed the filter and added new fluid and a bottle of lucas trans fix. its kind of working for now. but Im assuming that what I saw was the clutches. (I dont really know anything about trans)
Im assuming that I need to rebuild the trans. but can someone that knows these thm200’s give me a list of the best upgrades to make it better and stronger since Im about to drop a lot of money to fix it. ( I want to use the same trans to keep te car original and it wont be a daily driver so it doesn't need to be soft and comfortable.)
thanks in advance for the help.
Im assuming that I need to rebuild the trans. but can someone that knows these thm200’s give me a list of the best upgrades to make it better and stronger since Im about to drop a lot of money to fix it. ( I want to use the same trans to keep te car original and it wont be a daily driver so it doesn't need to be soft and comfortable.)
thanks in advance for the help.
12-29-2020, 11:36 PM
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Car: Resto-Mod 1987 IROC-Z Clone
Engine: Alky fed L92 Vortec Twin-Turbo 6.8L
Transmission: My own built/ design 4L80M
Axle/Gears: Custom 12 bolt (4.10:1)
Re: thm200-4r help
I bought a 89 turbo ta that had not run in over 4 years. got everything working but when ti got to about operating temperatures the trans stopped shifting. I dropped the pan and it the fluid looked like mud, so I clean what I could changed the filter and added new fluid and a bottle of lucas trans fix. its kind of working for now. but Im assuming that what I saw was the clutches. (I dont really know anything about trans)
Im assuming that I need to rebuild the trans. but can someone that knows these thm200’s give me a list of the best upgrades to make it better and stronger since Im about to drop a lot of money to fix it. ( I want to use the same trans to keep te car original and it wont be a daily driver so it doesn't need to be soft and comfortable.)
thanks in advance for the help.
Im assuming that I need to rebuild the trans. but can someone that knows these thm200’s give me a list of the best upgrades to make it better and stronger since Im about to drop a lot of money to fix it. ( I want to use the same trans to keep te car original and it wont be a daily driver so it doesn't need to be soft and comfortable.)
thanks in advance for the help.
You have a rare car with a THM200-4R and should ONLY be worked on by very select people (yes anybody could work on the car, but not many care for this car as it should be!)
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