Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

A/T - 440T4 Input Sprag Replacement

SIL 89-30 (Sept)

SUBJECT: Hydra-matic 4T60/THM 440 T4

INPUT SPRAG REPLACEMENT:

The early (narrow) input sprag, Part # 8658501, is no longer available.

When repairing a THM 440 T4 with a sprag failure, it is highly recommended that you up-date to the late (wide) sprag assembly.

(See TSB 87-67)

The early sprag is available as an assembly only (with races Part # 8646986.