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  1. 8

    Question about removing belts...

    First off, i'm not the most experienced mechanic but I can figure out most of the basics ... this one has me stumped. My 89 R3500 has a 7.4 with AC and smog pump. My power steering pump decided to start leaking very bad so I wanted to replace this myself. I have to remove the belts to get the...
  2. 8

    Dana 70HD Gear Oil

    I want to change out the 30 year old gear oil out of the Dana 70HD in my 89' 3500 dually. Anyone know what the correct gear oil weight and capacity is for this axle? Thanks, Joe
  3. 8

    Mud Flap Mounts

    My 89 R3500 driver side mud flap mount is torn and it makes a ton of noise when driving. I've been looking for a direct replacement but I've not had any luck finding anything that looks like it will bolt right up, does anyone have any suggestion?
  4. 8

    Broken vacuum line

    Hi, it's been a while since I've posted here but I've recent put some money into my truck and started driving it again, but as the summer heat left a rat decided to move into the engine compartment and destroy several wires and a hard formed vacuum line. I have repaired all the electrical damage...
  5. 8

    1989 R3500 Dual Battery Question

    Hi, My truck has a secondary battery tray that was empty when I bought it, It looks like it did have one there at one point because there are battery cables ran to the location that have been taped over. From what I had read, this was to power a trailer (there is a power connector at the wheel...
  6. 8

    Back seat sleeper conversation in crew cab

    My 89 R3500 has a travel quest package, part of that conversion is a rear sleeper seat. I'm beating my head against the wall trying to figure out how to fold it out. Does anyone have any experience with these? I can use the lever on the driver's side to slide the seat out about 4-6" but it...
  7. 8

    Can someone educate me on proper operation of an under/overdrive trans?

    I picked up my 1989 R3500 crew cab dually on Christmas eve with 34000 original miles from the original owner. I've never owned a 1 ton truck so this is a new world for me. They left me a binder with some info about the truck, one thing stuck out is that it has a Gear Vendor GV-400 2 speed...
  8. 8

    89 R3500 Part Identification Help

    Hey everyone, I hope this is the correct forum section to post this question to. My recently acquired 89 R3500 dually has a ton of bells and whistles that I'm not used to, I've owned 1/2 trucks before but nothing quite this massive. While poking around I've figured out what everything is...
  9. 8

    Hi, new to the forum!

    Hi everyone, I never expected to pick up a square body Chevy but I found a heck of a deal and fell in love. I found a 1989 3500 crew cab dually with a travel quest package for sale on the side of the road a few days ago. Just over 34000 original miles! An old lady, original owner, used it for...

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