Re: Billet 4L80E Adapters
is there any advantage to this piece over the thinner adapter plates?
Stronger:
This a billet precision machined one piece unit, not cast.
The thin adapter plate requires you to bolt the 700R4 tail housing to it.
The 4L80E uses 6 bolts for its tail housing as the 700R4 uses only 4. So when you bolt the 700R4 tail housing to the thin adapter plate it is only held on with 4 bolts.
The more pieces you bolt together the weaker it becomes.
Better Alignment:
Being one piece gives better alignment.
The thin adapter aligns to the transmission and then the 700R4 tail housing aligns to the thin adapter and then the transfer case aligns to the 700R4 tail housing.