Tech Information Why Use Micro Sleeves?
Heavy Duty Diesel Sleeves
GM 8.1L Sleeve
Recessed Flywheel Engine
Mazda Oil Pump Seal Journal
New Applications Available
Universal Installation Tool 
MST301-1 Universal Installation Tool is used for precise installation of all Micro Sleeve rear crankshaft seal surface sleeves, except where noted. Patent registered with the U.S. Patent Office
MST301-1 KIT CONTENTS:
- 12” x 3/4” threaded rod
- Slide hammer
- Large backing plate
- Small backing plate
- Pilot bearing hole guide buttons
- 3 “cups” for MS346-F
- Application/Dimension card
Click "Demo" on the navigation bar (left) to view a "how-to" demonstration.
REAR CRANKSHAFT SEAL SURFACE SLEEVE INSTALLATION CUPS
ALTERNATIVE TO MST301-1 UNIVERSAL INSTALLATION KIT
| Part # | Used to Install Part # |
| MST331 | MS331, MS331-1, MS331-2, MS331-G1, |
| MS331-G2, MS342, MS342-G | |
| MST332 | MS332-1, MS332-G1, MS336, MS336-G, MS338, |
| MS338-1, MS338-G | |
| MST333 | MS333, MS333-G, MS340-1 |
| MST335 | MS335-1, MS335-G |
| MST339 | MS337, MS337-G, MS337-G1, MS339, MS339-G |
| MST341 | MS341, MS341-G |
| MST346 | MS346, MS346-1, MS346-G, MS346-G1, MS346-G2 |
| MST347 | MS347, MS347-1 |
| MST352 | MS352, MS352-G, MS352-G1, MS360 |
| MST353 | MS353, MS353-G, MS353-G1, MS368-G |
| MST353-F | MS346-F |
| MST356 | MS356-1, MS485 |
| MST358 | MS358, MS358-G |
| MST364 | MS364-G, MS362-G |
| MST366 | MS366, MS366-G |
| MST371-F | MS371-F |
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