NOTES FOR SHAFT EXTENSION:
1. Transmission must have rear support installed as supplied by the vehicle manufacturer.
2. Allison 4000 Isoqoni: ES not currently available for the 7 speed HD4700 transmission. Not currently available for any 4000 retarder or units with rear-mounted oil coolers.
3. All ES Kits are for shaft low PTO arrangements. “3” on left side and “1” on right side.