WIk1500

iTrader: (1)

Hey guys,
I heard somewhere that the long crank 6.0l (99-00) would bolt up to the older 4l60e. Is this true? I didn't think there was a substantial difference in transmissions between generations. I'm putting it in a 98 chevy 1500 that currently has a built 4l60e and would like to know this before I purchase a new crankshaft.

Thanks,
Luke

Bo185

It will bolt right up all you need is the flat flex plate and no spacer. The longer crank flange makes up for it. Just elongate or drill holes for the earlier verter as well.

WIk1500

iTrader: (1)

Thanks Bo185, that's what I wanted to hear.

ninetyeightbird

I just put a 99 lq4 in my t/a bolted to a 4l60e in addition to slotting the holes on the flex plate I had to also get the nose of the converter milled down .25" ( the part that goes into the end of the crank) I used spacers in between the flywheel and converter at first but ended up messing up the front pump on the trans. Btw there is no flywheel spacer on a 99-00 lq4 that is why it is known as a long crank

WIk1500

iTrader: (1)

I'll keep that in mind. Thanks 98bird