Running an older transmission with the smaller 4.686 inch pilot index behind a bellhousing machined for 5.125 inches? This billet aluminum ring closes the gap so the transmission centers properly.
Features
- Aluminum insert reduces a 5.125 inch bellhousing index down to 4.686 inches
- Simple installation with instructions included
What is included
- Aluminum index reducer ring (716078-A)
- 5/16 inch zinc flat washer
Fitment
Reduces GM 5.125 inch bellhousing bore to the 4.686 inch index used on older transmissions.
Not sure this fits your build? Send us your vehicle, engine and transmission and we will confirm fit before you order.