TH400 Ultra bell
TH400 Ultra bell Anyone here had any problems using a JW ultra bell on a TH400?
I just had one installed on mine by a reputable race trans shop. The case was clearanced nicely and was not hitting the ultra bell anywhere. Went to install in the car (Nova with BBC) and could not get it to slide over the left dowel pin, right side went on no problem. Ended up lightly running one bolt in on the left side and the trans seated against the block. Now the converter would turn freely but not pull forward and locate in the back of the crank.
I knew there was a misalignment issue and took it right back out. Then I took the ultra bell off the trans and test fitted it to the block with the same issue. It will not go over both dowel pins, it seems to be shifted slightly to the left side. Keep in mind, I've ran a stock GM case for years with no issues. I took the trans out to get freshened and install the ultra bell to have a legal flexplate shield.
I've read on another forum where people have had numerous fitment issues with these. I like the idea behind it, but am concerned with fit and long term reliability.
I just had one installed on mine by a reputable race trans shop. The case was clearanced nicely and was not hitting the ultra bell anywhere. Went to install in the car (Nova with BBC) and could not get it to slide over the left dowel pin, right side went on no problem. Ended up lightly running one bolt in on the left side and the trans seated against the block. Now the converter would turn freely but not pull forward and locate in the back of the crank.
I knew there was a misalignment issue and took it right back out. Then I took the ultra bell off the trans and test fitted it to the block with the same issue. It will not go over both dowel pins, it seems to be shifted slightly to the left side. Keep in mind, I've ran a stock GM case for years with no issues. I took the trans out to get freshened and install the ultra bell to have a legal flexplate shield.
I've read on another forum where people have had numerous fitment issues with these. I like the idea behind it, but am concerned with fit and long term reliability.
Could be a defect. Unbolt it from the trans and work with it to see exactly what is going on. It's much easier than trying to fight the whole trans. If it is obviously machined incorrectly I call the manufacturer and see what they have to say.
Anyone here had any problems using a JW ultra bell on a TH400?
I just had one installed on mine by a reputable race trans shop. The case was clearanced nicely and was not hitting the ultra bell anywhere. Went to install in the car (Nova with BBC) and could not get it to slide over the left dowel pin, right side went on no problem. Ended up lightly running one bolt in on the left side and the trans seated against the block. Now the converter would turn freely but not pull forward and locate in the back of the crank.
I knew there was a misalignment issue and took it right back out. Then I took the ultra bell off the trans and test fitted it to the block with the same issue. It will not go over both dowel pins, it seems to be shifted slightly to the left side. Keep in mind, I've ran a stock GM case for years with no issues. I took the trans out to get freshened and install the ultra bell to have a legal flexplate shield.
I've read on another forum where people have had numerous fitment issues with these. I like the idea behind it, but am concerned with fit and long term reliability.
I just had one installed on mine by a reputable race trans shop. The case was clearanced nicely and was not hitting the ultra bell anywhere. Went to install in the car (Nova with BBC) and could not get it to slide over the left dowel pin, right side went on no problem. Ended up lightly running one bolt in on the left side and the trans seated against the block. Now the converter would turn freely but not pull forward and locate in the back of the crank.
I knew there was a misalignment issue and took it right back out. Then I took the ultra bell off the trans and test fitted it to the block with the same issue. It will not go over both dowel pins, it seems to be shifted slightly to the left side. Keep in mind, I've ran a stock GM case for years with no issues. I took the trans out to get freshened and install the ultra bell to have a legal flexplate shield.
I've read on another forum where people have had numerous fitment issues with these. I like the idea behind it, but am concerned with fit and long term reliability.
I did contact them yesterday, said they would swap it out. They didn't question any of it, which leads me to believe it's not the first time.
Thanks for everyone's input.
Thanks for everyone's input.
JW is a pretty good company if you're having fitment issues I'm sure they will swap it with no questions asked, what you're explaining it sounds like a mis-machined part.
Stuff happens man. Be glad you found it before trying to run it.
Stuff happens man. Be glad you found it before trying to run it.
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