How to tell the difference between a 205 and 203

[Ryan88Jimmy]

How can you tell the difference between a 205 and 203 tcase with the id plate off? and without getting inside of the case.
thanks

Ryan

 

[Chris Demartini]

<font color=blue>Theres a small plate on the back held on with 3 bolts. its in between the large round cover and the rear output</font color=blue>

 

[Goose]

The shift pattern is different for one. On the 205, the shift pattern from far front to rear is: 4low/neutral/2high/4high. The 203 is: lowlock/low/neutral/high/highlock. The 203 typically has a large round aluminum extention on the rear of the case where the rear drive shaft comes out. Also, if your vehicle doesn't have locking hubs (auto or manual) it is the 203. I'm sure there are other differences but can't remember 'em now. chow

Fencepost eater

 

[rezalb]

See if this helps, they have images.
www.chuckschevytruckpages.com/drivetrains.html

rezalB

Built for a purpose.

 

[shaggyk5]

203 is much bigger too.

shaggyk5

aint nuthin in the world like a heavy chevy!!