th400 stall issue
08-15-2008, 01:00 AM
#1
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th400 stall issue ok well short story i bought a vigilante stall from a member for a th400 to ls1 well tonight i started my install and came across an issue my normal convertor bolts that i used for my 4l60e are way to thick for the stall that i bought!!!! cant thread them in. so i went to a bolt store and bought newer ones but not as thick ok well i can thread them now... Ok now another issue i can turn the stall about an half inch back and forth due to the small bolts(im using stock flexplate) what can i do? anybody have this issue before? this is holding up my build
08-16-2008, 11:29 PM
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ya the flexplate holes are too big now and the can wiggle the stall like half an inch back and forth... wouldnt that like cause a problem? say im driving normal then go WOT those bolts will hit the side flexplate holes kinda hard, couldnt it cause them to break?
08-17-2008, 10:05 AM
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You have two other options. Drill the converter pads out for bigger bolts.
Or get a flexplate with smaller holes.
08-17-2008, 11:48 AM
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ya i was thinking about having the convertor holes drilled out, it looks like a have enough surface to do that, now i need to find a place to do it....
08-17-2008, 05:48 PM
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You are going to have a little movement on the flexplate to converter bolts unless you snug them up. I had the same thing on my th400 yank converter to ATI flexplate. The car takes a lot of abuse and I havn't had any problems yet. It has gone low 1.5 60' times and will prob. go 1.4's this year.
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08-18-2008, 10:43 AM
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You are going to have a little movement on the flexplate to converter bolts unless you snug them up. I had the same thing on my th400 yank converter to ATI flexplate. The car takes a lot of abuse and I havn't had any problems yet. It has gone low 1.5 60' times and will prob. go 1.4's this year.