# Service bulletin 990729004

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 607589
- Published by NHTSA: 1999\-09\-29
- Manufacturer's number: 990729004
- Manufacturer's date: 1999\-08\-01
- NHTSA component: POWER TRAIN:MANUAL TRANSMISSION

## NHTSA's summary

SOME MEDIUM DUTY MODELS EQUIPPED WITH MANUAL TRANSMISSIONS MAY EXHIBIT A HIGH SHIFT EFFORT OR HARD SHIFTING CONDITION. \*TT

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Transmission and driveline, Manual transmission

## Vehicles listed

- 1997 to 1999 CHEVROLET T SERIES
- 1997 to 1999 GMC T SERIES

## Other bulletins for the same vehicles and component

- [160201](/bulletins/619242.md), 2001-05-21, Service bulletin: POWER TRAIN:MANUAL TRANSMISSION. THIS MESSAGE CONCERNS CERTAIN 1997 THROUGH 2001 MEDIUM DUTY TRUCKS WITH SPICER SEVEN SPEED MANUAL TRANSMISSIONS EXHIBITING HEAVY VIBRATION THAT INCREASES WITH SPEED AND / OR AN OIL LEAK AND / OR A CRACKED ENGINE BLOCK. \*TT
- [98837110](/bulletins/601414.md), 1998-08-04, Service bulletin: POWER TRAIN:MANUAL TRANSMISSION. TECHNICIANS MAY EXPERIENCE DIFFICULTY IN REMOVING THE CONNECTORS FROM THE PARK/NEUTRAL POSITION SWITCH, USUALLY WHEN TRYING TO REMOVE THE SWITCH DURING TRANSMISSION SERVICE. \*YC

JSON: [/v1/bulletins/607589](/v1/bulletins/607589)

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