Had a set back on the Dana 300, tight tolerances and my ignorance were the cause.
Had a slight gap, thought it was tight tolerances between the advance adapter and the Dana 300. Cranked down the bolts a little more and heard a pop, everything looked like it seated….great…then I saw gear oil coming out of the Dana 300 :-(
I cracked the case and rear output shaft on the Dana 300.
The directions did not say that I had to shorten the output spline on the 6l80e.
This is why I went with this kit over the Novak.
Spoke to Advance adapters to confirm.
This is the 3rd case of it occurring so they will be changing their directions and now recommend taking the lip off of 6l80e output spline.
I ordered a replacement Dana 300…$600 mistake.
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