Not long ago i finally hit 100k miles on my monte...
What ive done so far.

1. Oil Change
2. Spark Plug/Wire change
3. Transmission fluid/ filter change

I have checked the belt and it looks perfectly fine, no noticalbe cracks..

From what i understand is that there arent too many modifications for the 3500 out there so heres a list of the simple things i have done.

1. Air intake(3" OD/4" Length elbow,MAF, Custom Fab air box with 10" spectre filter)
2. Flowmaster original 40 series muffler
3. Removed resonator with straight pipe

Anybody out there who may have some input on anything i could do to service/ maintain the monte, or if you may have a great idea on what my next mod could be. Very bored at work today and any input is apreciated!

 

Wouldn't hurt to flush the brake fluid and power steering fluid (or do as I do, use a cheap turkey baster, suck the fluid out of the reseviour and refill with clean fluid, easy to do at multiple mileage intervals).
And if the coolant has not been flushed in a long time, flush it....

You got the basics, trans fluid/filter, plugs/wires, oil change....

 

Sounds great! I think i know my next plan of attack. Thanks!