The information on this site about rebuilding TH2004R's is both extensive and contradictory. How anyone can reliably rebuild one with confidence is remarkable. Just trying to understand what parts are sensibly required for a given power level is a mission in itself!
My question is simply this: Can I, with my mechanic and engineering background, who has build and modified a few TH400’s, TH350’s, etc, confidently rebuild a TH2004R to perform as expected and last the distance?
Here are some concepts I’m less than sure of:
Can any available TH2004R be modified to perform as expected or do you HAVE to have the GN or SS cores? Keeping in mind I’d use an ’86 or later core.
Are the VB’s so different that an unknown VB can’t be modified give the same level of performance as a performance one?
What VB’s modification need to be done to give moderate up shifts at part throttle but good aggressive shifts at WOT? Some on here say you don’t need to do much, others suggest getting a SS or GN VB. I also see special separator plates that “fix” some issues. Hence my confusion.
Are these transmissions difficult to get “right”? I see on here so many of “us” with TH2004R issues that I’m sure they must be.
CK Performance has a TH2004R that is exactly what I need but the cost to have one shipped to me here in New Zealand makes it beyond my reach. At US$1500 it sounds great but by the time I get it landed here it’s going to cost something like NZ$3700! They also sell a parts kit (I’m hoping it contain everything that goes into their “Street Strip” unit) that they put into this trans for $949. This option is affordable for me.
So, I need to make sure that if I get this “kit”, freight it to NZ, buy a local core and rebuild it as per Chris’s book, can I end up with a great trans or will I be posting on this forum with issues forever? LOL
Simple really…..or is it????
My question is simply this: Can I, with my mechanic and engineering background, who has build and modified a few TH400’s, TH350’s, etc, confidently rebuild a TH2004R to perform as expected and last the distance?
Here are some concepts I’m less than sure of:
Can any available TH2004R be modified to perform as expected or do you HAVE to have the GN or SS cores? Keeping in mind I’d use an ’86 or later core.
Are the VB’s so different that an unknown VB can’t be modified give the same level of performance as a performance one?
What VB’s modification need to be done to give moderate up shifts at part throttle but good aggressive shifts at WOT? Some on here say you don’t need to do much, others suggest getting a SS or GN VB. I also see special separator plates that “fix” some issues. Hence my confusion.
Are these transmissions difficult to get “right”? I see on here so many of “us” with TH2004R issues that I’m sure they must be.
CK Performance has a TH2004R that is exactly what I need but the cost to have one shipped to me here in New Zealand makes it beyond my reach. At US$1500 it sounds great but by the time I get it landed here it’s going to cost something like NZ$3700! They also sell a parts kit (I’m hoping it contain everything that goes into their “Street Strip” unit) that they put into this trans for $949. This option is affordable for me.
So, I need to make sure that if I get this “kit”, freight it to NZ, buy a local core and rebuild it as per Chris’s book, can I end up with a great trans or will I be posting on this forum with issues forever? LOL
Simple really…..or is it????