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  1. Mikes98

    Tire PSI for hauling firewood

    Tire pressures: another Pandora's Box akin to asking about motor oil. It's simple: on the sidewall of every tire is it's maximum load carrying capacity and the inflation pressure you need to meet that capacity ...which just so happens to be a tire's maximum inflation pressure (cold). You got...
  2. Mikes98

    Popping noise when suspension articulates

    Someone else with the same problem. I think I know of what you speak. I have a '98 GMC C1500 shortbed 2WD. Bought it in 2001. It would make this random "popping" sound ...coming from the rear of the truck. It would happen most often at slow speeds, as in a turn into a side street or parking lot...
  3. Mikes98

    Air Intake Duct

    I have to wonder if the "restrictions" were done as part of reducing NVH (noise, vibration, harshness). The small snorkel opening would act as a venturi to speed up the air flow and maybe that was a requirement for the resonator boxes (think: blowing across the neck of a Coke bottle). I had a...
  4. Mikes98

    Brake light switch

    Yeah, those clips. Some evil design engineer came up with these little bits of hell. The actual switch can be popped open ...just some simple switch contacts you can clean and put the thing back in.
  5. Mikes98

    Oil pressure

    Not a big fan of "pour in" fixes, but ...out of the clear blue, my '98 developed a valve ticking. Had recently changed the oil ...been on a 3K oil and filter change for most of her life. But there it was ...a tappet ticking that wouldn't go away. Decided to try the MMO ******. New fill of 4qts...
  6. Mikes98

    Issues with drum brake roll pins

    The shoes are often rebuilt ...basically new friction material is riveted onto used shoe frames. The pin hole may have worn over time to a point it's just a bit too big for the roll pin to stay put. You can try swapping the shoes since the leading/trailing drum brake system uses identical shoes...
  7. Mikes98

    who are the go to steering/suspension parts now?

    Agree with others about Mevotech. Just did the tie rod ends on my '98. O'Reilly's carries them under their house brand "Precision Chassis". These days it's a crap shoot in getting decent replacement parts. Name brands (like MOOG) don't guarantee quality anymore ...especially now that 95% of...
  8. Mikes98

    Gramps truck

    Just some ramblings ... my humble opinion here ... I wouldn't do anything "custom" to it; the truck looks to be in excellent shape. What I *would* do is peel off those side window "shades". Stepside beds are kinda rare to begin with but, matched with the extended cab and the small V-8, my guess...
  9. Mikes98

    Replacement Brake Drums

    Thanks for the reference and experience ...kinda what I was looking for. I figured there must be still one maker out there. I remember a few years back there was a company specializing in drum brake systems ...for classic cars and trucks and newer vehicles as well ...for owners who didn't want...
  10. Mikes98

    Replacement Brake Drums

    Yup. Been there done that and the assessment was it's the rear brakes.
  11. Mikes98

    Replacement Brake Drums

    Well, I had the drums turned, after putting about 500-800 miles on them, and the vibration and pulsing has decreased a lot ...not gone completely but definitely an improvement. So I'm guessing it's gotta be the drums. I looked at the front rotors (I rotated the tires at the same time since I had...
  12. Mikes98

    Replacement Brake Drums

    Yes. Agree, that's probably the case when the stuff has to come from half way round the world. Problem is there seems to be no way around it.
  13. Mikes98

    Replacement Brake Drums

    Oh yeah. The pulse is through the pedal ...there's no steering wheel vibrations if it were the front rotors. I've used the e-brake by itself (holding the release while applying e-brake pedal) and I can feel the pulsing through the e-brake pedal. At slow speeds, I can lightly apply the brakes and...
  14. Mikes98

    Replacement Brake Drums

    What replacement drums have you folks had good luck with? In particular, drums that are actually machined round to meet factory spec (.005 max out of round, if I recall correctly). My '98 GMC Sierra SL has the crappy 10" leading/trailing drum brakes. I recently replaced the shoes and went with...
  15. Mikes98

    rear brake problem

    Yup. I went to the dealership early on and they dug up a "bumper" ...little rubber disc you stick in the driveshaft end of the slip joint. Supposed to soften the "thump". The parts guys also said just to grease the slip joint every so often. I've found that Bel-Ray water proof grease works best...
  16. Mikes98

    rear brake problem

    Second the opinion on "Driveline clunk". My '98 had it when I first got the truck (in 2001). You would feel/hear it after a complete stop and then ease off a little on the brakes or moved off from a stop. AFAIK, it's most prone in one piece driveshafts. Dropping the driveshaft, cleaning...
  17. Mikes98

    Brake vibration

    Does the pedal pulse and is the vibration worse when you lightly apply the brakes (as opposed to stomping on them for a rapid stop)? I am battling this situation; it happens most dramatically at higher speeds (55mph +) and in particular when I'm just lightly applying the brakes (to control speed...
  18. Mikes98

    No brake lights. Brake light circuit diagram needed.

    There's a fuse box in the engine bay; it's the power distribution center and typically has some high amp circuits with big fuses (25a). It also has a bunch of relays as well. There might be something in there that's causing your grief ...
  19. Mikes98

    How rare is this?! Came right out!

    The GM quick disconnect heater hose connection. What you had is not rare and it's a ticking time bomb every GMT-400 owner gets to experience the joy of diffusing. I noticed mine because it was leaking; it had a nice crusty build-up of dried DexCool in and around the connector part. Once I...
  20. Mikes98

    305 Questions

    If I'm not mistaken, it has to do with the cast pistons ...and it is quite common in GM LS engines ...which are what we have in our trucks. https://autofella.com/what-is-piston-slap/ It sounds bad, especially in the colder weather, but mine's been doing it since I got it in 2001 and hasn't...
  21. Mikes98

    305 Questions

    Wow!. You didn't mention the stepside. I would definitely keep the truck stock. There is a website called "Comp nine"; it is a very sophisticated VIN decoder. When it first came out (many years ago) it was free; now you have to pay for the service. But it will tell you *everything* about your...
  22. Mikes98

    Bypass o2 sensors

    Agree with Kennythewelder. Your factory ECM is looking for fuel mixture information which is what the O2 sensors provide. You'll have to install the O2 sensors at the stock positions to make the computer happy. If the computer ain't happy ...just like momma ...aint' nobody gonna be happy...
  23. Mikes98

    305 Questions

    '95 was the last year for the L03 ...from what I've read it put out about 170HP and 255ft/lb of torque. It's got the throttle body injection. The truck does have a unique setup with the extended cab and the 5-speed ...which, IMHO, makes it probably kind of rare ...with the 5.0L making it even...

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