'97 2500 Laramie 4x4 NV4500, 3rd gen rims, BF A/T KO2 285/70R17
My truck is a '97 12v 4wd with a manual NV4500. I bought it before just a year and i noticed that when i pass a chuckhole, a road hump or if i drive off road i cant keep my throttle pedal steady, the truck is starting to jerk/jump, my foot is trying to return it in normal rpms and the whole thing is like a domino unless if i take my foot off the pedal....very annoying because i can't enjoy a nice ride in the countryside. I searched a lot, many people had same or common problem but i am a little bit comfused as my truck is manual and it hasn't a TPS. I checked it and i must put a lot of pressure to start pushing my throttle pedal and it reaches a point and then it becames sticky and stiff again so i must put more pressure to pass this second clicky point and touch the floor. I checked my throttle and cruise control cables and look ok and probably recently changed. I checked the rod and has some play, back/forward and inside/out, the 3 tension springs look unrust and in good condition. The spring in bell crank lever looks also in good condition and unrust, not very smooth but i have no experience before this truck in cummins engines. I don't know about the 2 plastic bushings in it. So as i put my hand to the back of the linkage kit with the engine on to open the throttle i realised that this sticky/hard point caused from the lever throttle (cummins 3931527). I take off the rod and i gave one more turn to the front end to reduce the play and i saw that the plastic bowls inside the frond and rear ends are staring to fail. I saw many videos with guys that ordered specific parts to renew the throttle kit but as i am far from US i think that is better idea to purchase the whole 4089112 kit and change it because i am afraid that maybe i will find more failed parts as i will try to change specific of them. Thoughts and advices please? A i saw the replacement isn't too hard to do it, what do you propose to order, i must order also new cables just if, also the rod comes the ends screwed in the right lenght or i must set them in a specific lenght after ?