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Wiper Blades

livid4dirt

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Warden, Washington
Anyone use longer wiper blades? If so what length please. Just wan't to upgrade from the stock shorties.......Thanx
 
was thinking the same thing yesterday

if the mounting point is centered, I'm going to try a blade 2" longer. I'm just over 1" shy of the top weather stripping, the other 1" will be on the bottom.

That's my guess, what measurement that actually is I dunno, it would take some kind of fancy measuring device to figure that one out. :D Maybe a ruler, footlong Subway sandwich, or my dong.
 
I think I went with 1" longer on mine, you may have to readjust the wiper arm on the motor shaft a tad, originally when I went with the longer one, it hit the side of the windshield frame a touch.
 
Square body rigs came with 16's on em stock. I usually run 18's without issue. 19's might also work, just remember more wiper is more drag on the motor if the glass isn't absolutely rain soaked...and the wiper motors on these trucks aren't know for being the best.
 
Just an FYI, if you have to put any stickers at the top center of your windshield, the longer wiper blades will hit. This tends to ruin that part of the blade. Probably not an issue for you, but maybe some state inspection stickers if required. (not in WA of course)

I believe I'm running 18's as well, it would be nice to run something like a 20" blade that is offset two inches "down", as the lower edge of the wiper blade misses a pretty good swath, especially in the center. Not a really critical place, most of the time you aren't looking out just above the hood. The really bad place is the passenger side, upper right corner.
 
I've almost always ran 18 or 19", depending on the blade.
 
I stepped up the length once and found that they moved really slow under some conditions. Ended up going back to stock length. Thinking back, the obviously correct solution would have been to get more power out of the wiper motor. Oh well. Make sure you keep the whole blade on glass that is relatively flat.
 
I get slow wiper motion too (along with wipers not wanting to shut off when cold).

I have a spare wiper motor, if anyone has "fixed" the wiper setup, I'd like to read about it. Somewhat pertinent here, Livid, let us know if it's obvious how wiper motion changes. It doesn't help that at idle oftentimes system voltage influences how well they work.
 
Yes i will post up about the wiper speed. My Jimmy the wiper motor seems slow already. But the Blazer, the wiper motor on it moves good.
 
I get slow wiper motion too (along with wipers not wanting to shut off when cold).

I have a spare wiper motor, if anyone has "fixed" the wiper setup, I'd like to read about it.

I have a spare (from a 12,000 mile wreck!), but my ~400,000 mi factory motor is still going strong. The problem is the wiring harness contacts.

Wipers not shutting off (sometimes/always) is the removable contact spring switch thingamajig under the removable cover (it comes out with no tools, just a plastic tab). Most likely, it's corrosion on the wire harness contacts, not an issue with the spring switch itself.

To "FIX" my wiper setup, I ganked some JY switches and soldered wire leads directly to the 2 metal contacts on the switch, then used bullet connectors to hook it up to the body harness. I carry a spare switch that is setup like this as well as an unmodified switch (factory plug remains, disconnected). New factory connector pins/plug might be available, but I'm not sure. My rig was parked near ocean for years before I got it, so simple cleaning of the contacts wasn't good enough in my case.. I've slowly been replacing all my wiring.


As for slow or sometimes not working motor, that's usually corrosion on the other (3 wire) plug contacts. If your motor works at all, chances are very good it's mechanically sound and your wiring harness needs attention. Mine stopped working entirely on a wet day once, fiddled with plug to no avail, then they started working awesome a few miles later and have been awesome/fast ever since.

HTH.:woot:
 
Got board at work today....never a good thing:whistle:. So I decided to try to get rid of that big'ol untouched spot on the bottom driver side corner of the windshield.I took 2 inches off the driver arm, needed a little twist to sit flush along the bottom of the window I do know a 19" fit with no problem now. That is as far as I got, still need more time to play with it, but I can still see if it rains for now.
Am I the only one to try this??:dunno:
 
Run 18 on the driver side and 19 on the passanger side, they run at the same speed as before.
 
Sense the motors in these trucks are rather slow and don't work very well. I wonder if putting a relay with a clean battery source would work, similar to the power windows trick?
 
I've thought the same thing, but I don't have a wiring diagram handy. There may be more than 1 hot line for high/low speed. This just means you would need more than one relay. The simple thing to do is get a voltmeter on the motor terminals and see how much voltage drop is happening. That will tell you how much a relay mod would help.
 

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