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  1. dwragon

    need a vin for computer cloning, please help, 96 7.4 5spd 373

    Hi all, I need a vin for a stock computer cloning for a 96 7.4 5spd with 373 gears, my truck, an NV4500 has the 513's in it and I simply dont need them (7 mpg is also killing me.), but I love all of the rest of the heavy duty suspension. I have a set of 373 posi gears to put in it, and have...
  2. dwragon

    Porportioning valve tools

    Here are two porportioning valve tools you can easily make, the first is from a tape measure belt clip, the second is made from a body clip and a throttle body screw. To purchase these tools cost a total of over $75.00. I recommend these tools over the screw in types promoted by google because...
  3. dwragon

    NV4500 ID? early 6:34 external gear

    Ok, so from what I have seen the 92-96 NV4500 is identifiable from the 97-2007 by two physical external characteristics, the 92-96 has a crossweb above the drivers side PTO plate, and a thicker/wider reverse bulge. So, how does one tell the difference between an early 6:34 geared transmission...
  4. dwragon

    NV4500 pto numbers

    Hi All, I am looking for NV4500 mechanical (not hydraulic pumps) pto numbers (Parker Chelsea/Muncie/other???). The gears, and thus the numbers for the NV4500 are very specific. My truck is a 97 3500HD, (transmission gearing difference from the earlier NV4500's (and maybe the 3500 HD, I dont...
  5. dwragon

    Little white switch on the ignition switch

    Anyone know what the little two wire white switch on the top of ignition switch does (multiple years 94 to 2002 that I know of)? Was changing out a switch when the white switch plastic crumbled. I think it has something to do with security, and can it be bypassed?
  6. dwragon

    to all, manual transmission input shaft tip eaten by roller bearing fix

    here is how to fix it when your manual transmission input shaft tip is eaten by roller bearing, go buy a dorman 690-035 clutch pilot bushing. This part is a step down late 50's turboglide adapter that I have used for years as a fix for this problem. Ran out of my stock of them and had to refind...
  7. dwragon

    Accursed yolk dust cap.....

    If this is in the wrong area, the Mods can move it, so regarding the accursed yolk dust cap grease holder....., that thing that causes you to need a come along to separate a two piece drive shaft and wont let you put it back on without taking it off with a hammer and chisel, and reinstall it...
  8. dwragon

    My notes on interchange of a 3500HD rear-end.

    The rearend on my New To Me 3500HD was screaming like a ***** ape so I had to change it out. I found a P Van Chassis rearend online at FB/MP, a corporate or spicer 14 bolt which I purchased for $300. Spicers were an option on the 3500HD. After installation I make note of the following, the...
  9. dwragon

    Switchless dual tanks/fuel pumps, how do they work?

    Hi all, I got my 97 3500 HD running, but due to the previous owner thinking someone stole his gas, (Actual problem, too much paint between the crank sensor and timing cover.) I disconnected the external fuel pump, mainly to prevent possible contaminated ancient gas from hitting the injectors. I...
  10. dwragon

    Seeking 88-98 "Hot Fuel Module/ fuel pump driver" answers.

    Hi all, OK, so the frame cracked at the drivers t on my 94 K3500. I had on standby a 92 C3500 that I knew had fuel issues. I replaced the one inch tube above the fuel pump, filter, sock and cleaned the tank. I drove the truck for over a week with no problems on the farm, then headed to town 45...
  11. dwragon

    Location of bad INSTRUMENT PANEL CLUSTER ground(s)?

    Hi all, I just bought my wife a 2003 Chevy, which the owner sold to me because he had ran out of gas 3 times after the instrument cluster stopped working. From what I have read, the most common cause of this problem is a bad/open ground. I believe this could be corrected by soldering an...
  12. dwragon

    "eliminate the obdII factory security system

    Hi all, I am seeking info on how to eliminate the obdII factory security system on a 97 3500HD I just bought. Bypassed the key to load it up by wedging a screw driver between the pin and lock plate. I know this can be done because I did it when I put an 95 OBDII LT1/T56 into my chevy Vega. To...
  13. dwragon

    driveshaft shift

    Hi all, I have a 94 3500 nv4500 single cab 4X4 with the 11 ft bed/ 34 inch frame and the narrow 16? gallon tank (I have never put more than 16 gallons in it, even when bone dry.) The truck originally had two tanks with another one in the rear which rusted out from non-use condensation. I am...
  14. dwragon

    94 to 96 nv4500, oil out of the shifter hole, too much oil, wrong oil, or getting to hot and going to crap?

    Hi all, I just installed an nv4500 that I got from a pickapart a few years ago, it looked to be a fresh rebuild when I bought it, but the DA's at the yard emptied the oil out of it.My Chilton's said 9.5 pints of oil so I put in 10 (5 quarts) of royal purple 75w90 synthetic. The trans did a...
  15. dwragon

    What's your mpg...

    Please post your mpg here, engine,fuel system, transmission type (OD or not), rear end ratio,and tire size would be appreciated.The reason for this is that I would like to get a realtime comparison for a future build (454/1996 NV4500/342:1). Thanks all.
  16. dwragon

    HD stuff ???

    Hi all, this may have been discussed here before, but I couldn't find it. I have an 89 pace arrow rv. It has ten bolt HD suspension on it and I have an 8 bolt 94 K3500. Interchanging the disc brake rear axle is no problem except I lose park brake, but my truck is a 5 speed, so that doesn't...
  17. dwragon

    ? Would an Edlebroke aftermarket fuel pump work to replace a TBI intank unit?

    I am sure this ? has already been answered here but my search gave me a bunch of disinformation. ?, would an Edlebroke aftermarket fuel pump work to replace the intank unit on a TBI system since it is low pressure? I hate PITA intank pumps.
  18. dwragon

    Fuel Pump relay ???'s, 92 Chev 3500, standard transmission, non 4X4.

    Hi all, I just bought a 92 Chev 3500, standard transmission, non 4X4, that has been sitting about two years. Engine runs on tb priming, but no fuel pressure. Before I pull the tank, I want to see if I can use the prime wire on the relay to prime the pump (I can hear the pump trying to operate...
  19. dwragon

    NV4500 4X4 Need help, broke down on the side of the road.

    Ok, I am towing a midweight load, get to a light, go to pull of, grinding in all gears, switch to 4WD compound granny, will pull, apply gas, goes to grinding again,put into neutral, sounds normal. Put in gear, driveshaft is shuddering. Is this a broke clutch, input gear, or???
  20. dwragon

    4X4 ?'s

    OK, I gave up on attempting to search the site because of so many ads were clogging the speed of my throttled straight talk phone:rolleyes: (and I had to go on my laptop to type and paste this:mad:), so here goes. 1, On a 1995 single wheel conversion to dually, will the steering knuckle...
  21. dwragon

    2005 GMC ignition lock cylinder removal with no key.

    I had a 2005 gmc 3500 truck with no ignition key, to remove the cylinder from the aluminum housing, l did the push the pins thing, and then the spring loaded retainer to get the cylinder to drop. I then used a sawsall to cut the cylinder, staying away from the pins. When only a strip...
  22. dwragon

    hydraulic to mechanical clutch conversion

    Hello everyone, I read a few snipits of a GMT 400 hydraulic to mechanical clutch conversion, but never found any posts about it. I have a 1994 economized quadrajet GMC 454 one ton dually 4X4 that I bought and made one 600 mile trip between the time the Throw out bearing went from silent to...
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