If it's a 1/2 ton then it will be a 4L60E-4L65E transmission.
If it's a 3/4 ton then it will be a 4L80E-4L85E transmission.
4L60E Transmission
What type of silverado and what is the VIN and I'll tell you.
The 2003 Chevrolet Silverado-1500 has overhead valves (OHV).
The 2003 Chevrolet Silverado-2500HD has overhead valves (OHV).
a 2003 Chevy silverado taillight bulb uses a 3157
a 1983 silverado has an TH350, its a three speed tranny. its been said that it's the best transmission that gm has ever produced.
Dextron II
Syn-torq synthetic transmission fluid or equivalent.
Dextron II transmission fluid.
Yes, a 2003 Silverado transmission can fit in a 1999 Sierra, as both vehicles share similar drivetrains and components since they are part of the same GM platform. However, you should verify compatibility regarding transmission type (automatic or manual), engine size, and any necessary adapter or harness modifications. It's also essential to check for differences in the transmission control systems and ensure that they can be integrated properly.
It requires a electronic 700r
If it is a k1500, most likely it has the 4L60E transmission.