The recommended type of gear lube is a GL4 in a viscosity of 75W90.
your gonna have to remove trans. and replace the 5 th gear cluster.
75W-90 Gear oil
gear oil
I have a 1993 Nissan Sentra. It jerks in first gear. While changing to 2 - 4, it runs very smoothly.
check clutch slave cylinder
The right type of fluid will keep a car running at its best. The 1995 5-speed Nissan pickup uses 75W-90 Gear oil.
For a 1997 Nissan pickup, the recommended manual transmission fluid is typically GL-4 or GL-5 gear oil with a viscosity of 75W-90. It's important to check your owner's manual for specific recommendations, as some models may have unique requirements. Ensure that the fluid meets the manufacturer's specifications for optimal performance and longevity.
you probaly need a fourth gear,its probaly rounded off,.the teeth are probaly worn way down.
First Gear: 3.625:1 Second Gear: 2.043:1 Third Gear: 1.394:1 Fourth Gear: 1.00:1 Fifth Gear: 0.853:1 Reverse: -4.039:1
What is the gear ratio for a 1985 CHEVROLET K10 pickup
have a look at www.crutchfield.com It's a great site to buy audio gear. Also a great place to gather info.
standard 80/90 if its winter you can use synthetic also still 80/90