stock rear-end ratio is 3.08 gears.
Stock gear ratio for that van is not 3:08 it wasn't an option. It stands a better chance of being 3:42 which would be option code GU6 on the build sticker in the "glove box".
sticker should be under hood on the van.,
on rad support or on hood underneath side of it glued in place
possibly also in rear on rear door or spare tire cover
G code is axle code
The stock gear ratio for a 1995 Chevy Blazer is 3.73. This provides a good balance of fuel economy and power to the rear wheels.
3.8
it will probably be 3.73
what size truck? 1500,2500,3500?
Most any stock carrier without a posi with have a 2:73 ratio
i believe it would be 3.11
the stock Toyota gear ratio is 4.11
Hear is an easy way to find out what your truck has in it FOR SURE. Wright the VIN # down and call a Chevy parts dealer and tell them that you have the VIN# and would like to know what the gear ratio is in your truck.
from the factory the 5.3 liter Chevy has 330 horsepower at the crankshaft it has about 290 at the tires depending on gear ratio
3:73 with 4:10 as option
The stock rear-end gear ratio for all US 240sx is 4.083
All you need to do is call a Chevy dealer and give them the VIN# and asked them what the gear ratio is in your truck and they will tell you what the factory gear ratio is.