Northland Automatic Transmission Service, Inc.

Since 1978

Servo Pin Bore WearServo Pin
Bore Repair

Northland Transmission is the proud home of the SF-99 Servo Pin Bore Repair system.  The SF-99 is a patented series of tools to repair worn automatic transmission cases.  Here you see an overdrive servo from a
Ford 5R55W.  This unit was only two years old with about 80,000 miles on it.  The tool for this bore (5RW), as well as the tool for 4F27E's (4F27) are Ford approved tools, and are available through Ford Rotunda.



We also offer tooling to repair worn Torque Flight (through 48RE) valve bodies as well as several specialty parts for several different lines of transmissions.

Transmission Repair

We are a full service transmission shop specializing in transmissions and four wheel drive systems.

Vehicles acting up?  Stop in anytime eight to noon, one to five for a free road test.  No appointment necessary.



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