Need Suburban info.......

[Mafesto]

What was changed/improved from 1995 to 1999 on a 2500 4x4 454 ?

Thanks

 

[prowrench]

the the 4wd module is different, fuel pump, not much more

 

[gixxer96]

Vortec Cylinder heads and multi port fuel injection. More torque and HP.

1995 you could buy the fuel pump separate from the fuel sending unit. pump costs around $125 (Acdelco). 1999 it is all one piece called a fuel pump module, sender and pump. around$450 dollars(Acdelco)

1/2 tons in 1999 had the auto 4wd option. I don't think the 3/4 tons did.

interior and exterior are the same.