This listing is for Superior 4F27E / FNR5 Adjustable Band Pin & Nut.
Complaint: Slips after rebuild on either 1-2 shift or 3-4 shift or burnt bands and/or burnt drum or slips/flairs on 5-4-3 or 4-3 downshift.
Cause: Unable to adjust band as no provision exists except to buy expensive gauge tool and 5 different preset length bolts.
Superior Correction / FIX: The fix is to install the 4F27E / FNR5 Adjustable Band Pin & Nut and simply adjust the band following our easy step by step instructions. The new adjuster and lock-nut allow you infinite adjustments without tools or extra parts you won’t use.
Full detailed instructions are included in the kit.