Both windows go up and down very hard...how to fix???

[kickinasphalt]

On my new 71 K-10, both windows are VERY hard to crank up or down. What could be the problem? Is something worn out or does it just need a little WD40? Thanks!

[Mudder]

WD works wonders for lots of things.........

or......some white grease on all the pivot points or the regulator and gear...

[dubie]

Yeah, just remove your door panel and lube up the rollers, track and the scissor lift inside the door

['70_402]

I tryed that very same thing on mine and it made it a little better but not totally (i still have to use my other hand to help the window up) is there aything else you can do??

[Mudder]

Try spraying silicone on the window tracks (channels).

[cdowns]

if cleaning and lubricating the mech doesn't work about the only option is to change out to new parts

[70c10]

I thought you had to get ALL the old grease first then apply new grease.

[72GMC_KY]

I had this same problem on my 72 GMC. I was going to replace the regulators, which seemed like the logical choice.

After I got the regulator out (which is not the easiest task in the world), I noticed that there was a lot of rust on the slides that all of the grease in the world was not going to help. After a lot of elbow grease and sandpaper and emory cloth, my regulators now move with ease.

It took some time to complete, but it did not cost me anything.

HTH.

[sactoC10]

WD40 is great, but not what you want to use on the regulator. I put some on the regulators of my 1955 F-100 and then I could no longer keep the windows in the "UP" position. They were so lubed and free, they'd rattle down into the door with simple (albeit straight-axle) driving!

I'd say clean the channels very well, get into the door and re-grease the regulators. Just my two cents...

[Longhorn Man]

WD40 is worthless, and induses rust. PB Blaster is a cheap and much better spray lube.
I removed mine, hosed them down with brake clean, then soaked them with PB Blaster.
These things roll up and down like a new car...actually easier than my wife's 76,000 mile kroger cruiser...without the "too easy" thing as described above.
If they roll down too easily, then you basicly need a new regulater, the spring is probably broken.

['70_402]

Is there any easier way to get all that stuff out of the door (my arms are too big to move around inside the door!) I can't even see the other side slide channel. are thier some special tools or something i am missing out on?????

['70_402]

ttt.........

[A few 72's]

Check out this older post, Bow-tie-bandit had a step by step that should help.

http://67-72chevytrucks.com/vboard/s...threadid=82235

[67chevemall]

Make sure nut tn is broke!

Clean em first with something Castrol degreaser is a good product!

Then oil em up add some grease here and there and BAMM!

[neonlarry]

Also make sure the three nylon rollers are in good shape if not replace them while you have the regulator out. I know most of the ones in my truck and the burb were worn out or gone.

[jku72]

On mine, there was a flat spot on the nylon roller. I ended up replacing the whole assembly.

[Eagle-Eye92]

Three words: White Lithium Grease. Work at a body shop and that stuff is perfect for that kinda stuff. If that doesn't help try loosening the regulator and adjusting, if that doesn't work, the regulator probably has a little of the rusty stuff in thereand needs replaced.

Hope that helps