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I got my SUM-829200 starter installed. I'm using a 168 tooth B&M flexplate 20304. Why is it squealing? The 2 supplied long bolts are in straight, and torqued to 37 ft/lbs.
Wh
OEM bolt appears to be same length as bolts that came with this starter. The teeth on the new starter are placed higher than the OEM one. Checked out another new 6.0L, 11 tooth truck starter at the local parts store and it looked the same as this summit one.
Last edited by 5.7stroker; Jul 15, 2018 at 12:01 PM.
Bench tested and it works fine. Not sure why it's not engaging the flywheel properly and squealing. Either that or the BM flexplate has something to do with it. My options are to try another one of these or get the AC Delco reman. Many positive reviews on summit about this starter.
Last edited by 5.7stroker; Jul 15, 2018 at 05:35 PM.
Installed the power master 9509 and it works perfectly. Didn't even have to shim it. No screeching, no grinding, just perfect engagement on the flex plate teeth. All I had to do was use the clock adjustment feature on it and clock it 30 degrees away from the block to get it to fit. Plenty of header clearance with the strange engineering headers.
So if you have an aftermarket flex plate, I'd save yourself the potential hassle and just get a power master rather than a Bosch SR8581N or SUM-829200.
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starter/flywheel engagement 
