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Tom Goldman · 08-01-2021, 12:31 PM

Typically ,a sudden shock load against the stator tube coming out of the burnout with the tires drying up is the culprit.
The stock tube is only pressed into the pump casting with splines ....Good builders also drill and tap the casting for a set screw ,which adds a little extra protection, along with replacing the OEM tube with a stronger chrome moly one.
New aftermarket pumps utilize a bolt in design that is relatively unbreakable , but there is always someone who can break anything
The Sonnax tube you referenced is for Very High HP applications and allows the use of a larger 1 1/8" input shaft

08-01-2021, 12:31 PM	#2
Tom Goldman VIP Member Join Date: Jan 2003 Location: Allentown,PA Posts: 2,436 Likes: 776 Liked 700 Times in 204 Posts	Re: Question for Powerglide Wizards Typically ,a sudden shock load against the stator tube coming out of the burnout with the tires drying up is the culprit. The stock tube is only pressed into the pump casting with splines ....Good builders also drill and tap the casting for a set screw ,which adds a little extra protection, along with replacing the OEM tube with a stronger chrome moly one. New aftermarket pumps utilize a bolt in design that is relatively unbreakable , but there is always someone who can break anything The Sonnax tube you referenced is for Very High HP applications and allows the use of a larger 1 1/8" input shaft __________________ Tom Goldman 1500 SG , 1506 STK Last edited by Tom Goldman; 08-01-2021 at 12:35 PM.