ls1408cp

iTrader: (37)

I am going to buy an pontiac th400. Is it the same as the chevy bell housing tranny. Since I am going to cut it off and install a jw ultrabell I dont think it matters. As far as I can tell all the measurements and converters are the same. I just wanted a second opinion. thanks

8a8mfh

iTrader: (3)

After you cut it back to the pump it's the same as a chevy.

ls1408cp

iTrader: (37)

cool thanks

Yank

iTrader: (181)

some of the BOP cases use 6 bolt pump and other use 8 bolts so check if the bell will work with the pump that you have

ls1408cp

iTrader: (37)

thanks yank it was a 6 bolt and it fit the bell. Now just get me that converter

DAPSUPRSLO

iTrader: (14)

The ultra bell needs clearenced for the top 4 back engine cover bolts, and only uses 5 bolts to fasten it to the engine. Just did mine! Good luck!

ls1408cp

iTrader: (37)

thanks yes I alredy did all the clearenceing when the engine was out. I also had to remove alot more material then just the four bolts the whole top of the cover hit it also.

DAPSUPRSLO

iTrader: (14)

what area are you talking about besides the bolts? thanks

DanZ28

iTrader: (5)

You have to cut those two big ears off the top of the ultra bell as well. Besides that and the clearancing for the 4 upper rear main cover bolts, thats all you should have to do. I just installed mine yesterday.

Dan

ls1408cp

iTrader: (37)

mine hit the whole top of the cover. it was holding the top out about 1/16 of an inch. I would check it out

DAPSUPRSLO

iTrader: (14)

Dan, what was hitting those ears on your car? I just put mine in in final postiion and haven't had to cut those ears off. I certainly hope they aren't going to interfer with my headers or anything along those lines. I've already had this thing in and out like 5 times now, ha, and really don't feel like pulling it out again. Thanks.

ls1408cp

iTrader: (37)

do you have to cut the two ears off or you just did it to do it

DAPSUPRSLO

iTrader: (14)

Damn, going to take a look now.

DAPSUPRSLO

iTrader: (14)

Just looked and see what you guys were talking about. However, it did not keep my bell from sealing 100% to the top of the block though. I couldn't fit event a fingernail in and looked everywhere and saw now cracks or spaces, hopefully i'll be ok but will definately look for that next time the trans comes out.

DanZ28

iTrader: (5)

I did it because Rossler told me they needed to be cut off. I butted the th400 ultra bell up to both my T56 and 4l60e and those ears stick up quite a bit (about an inch) past those so I marked them off to be the same as the 4l60e. I didn't fit check it on the motor as I didn't want to put in and pull it out again without using a lift. I noticed the pics that Derty put up of his ultra bell also had the ears cut off. If it fits for you then cool.

I checked it out pretty well. I beveled the top inside edge (between the top two bolt holes in the ultra bell) about 3/16" though before I ever clearanced for the bolts (hoping that was enough but it wasn't) so thats probably why I had no other clearance issues. Right now it fits great.

on another note, I put in another post about the clearance between the TC pads and the flexplate. How much clearance did you guys have?

Dan

ls1408cp

iTrader: (37)

i am waiting on my converter or else i would tell you

DAPSUPRSLO

iTrader: (14)

Dan, in all honesty this is my first experience working with an auto. Could you be a little more clear with your question at the last part of your reply and i'll do my best to answer

Yeah, and if i'd checked it like you did I probably would've done the same thing but just luckily it seemed to work out for me!

DanZ28

iTrader: (5)

No problem. With the torque converter pushed into and seated completly in the transmission, you should have a gap between your flexplate mounting holes and the torque converter mounting pads. This area has a min and max clearance that needs to be set, mine is just slightly bigger than 3/16" so I just shimmed it. It is now somewhere between 1/8 and 3/16". Here is what Rossler says http://www.rosslertrans.com/Converter Spacing.htm and has some good illustrations to show what I'm talking about..

Also, I just checked, and other than the four top rear cover bolts, I would of had no clearance issue at all there. It was like 3/16" away from the cover itself.

Dan

DanZ28

iTrader: (5)

Mike, get this man his converter ..

DAPSUPRSLO

iTrader: (14)

Wow, holy crap. I'm glad you said something Dan, like I said this is my first experience with an auto and I didn't know there was a min and max value here (other then the pilot keys being engaged). I'll make sure to check this next weekend when I continue with this project. I did wonder about this but was not 100% posative regarding how to proceed.