Posted by CJ Meier on March 31, 1999 at 15:53:57:
In Reply to: How can I tell if I have factory 4.89 gears ??? posted by Chris on March 31, 1999 at 14:44:36:
Drive it! If you can go 50 mph without the engine sounding like it's going to explode their 4.89. If you can only hit 35 mph and the engine is wound out they are not.
Hope this helps Good luck.