47-55.1 Vacuumn wiper replacement?

[JDarby]

I had purchased a 2 speed electric wiper kit off of eBay and then waited to long to test it , passed my return window.
Now that the AC unit is in place I realize the one off eBay will not work for me.

Have any of you tried the units' sold by LMC Trucks?
They look like a direct replacement.

Im not opposed to using RainX and leave the vacuum ones in place!

Thanks for your time!

[nvrdone]

I went with a major well rated electric wiper kit. What a pain to install. First the mounting bracket didnt fit the truck. Then trying to install the switch in the dash, It wouldnt clear the motor. I had to make up a 1/4" spacer to lower the motor so it wouldnt hit the switch. Finally removed the old throttle cable knob and mounted the switch there. Once I got it all installed the wipers only clear about 1/3 rd of the glass. If I set the self park to be parallel with the bottom of the glass the wiper only goes up so it is sitting straight up. Fortunatly where I live we dont need wipers and if we do I just dont drive the truck.
If I were to do it again I think I would use the original vacuum wipers with a seperate vacuum pump to power them.

[vintovka]

Went with electric -- hate it. If i still had the ability and the parts i would have added a aux 12 v vacuum pump and run an original motor off it. Had i been thinking it would be a no brainer to run the pump to the power brake cannister as a reservoir. If anyone likes this idea i have a near new 12 pump from Jegs sitting here cheep. Really miss the sound of the old vacuum wipers as well.

[JDarby]

Thank you guy's this is very helpful!!

[Thadious]

I had designed a 12v system years ago when I did my first build. The information is still there if you want to see what I designed. I found my drawings not that long ago and just picked up a CNC machine to rebuild in the future and have considered making kits again but I would need to source what the materials would cost these days. May be cheaper in the end, but I've heard a fair bit of issues with the other aftermarket setup, not to mention that they are pretty expensive!

https://67-72chevytrucks.com/vboard/...version&page=4

[mr48chev]

The Newport engineering unit that isn't exactly inexpensive is considered by most to be the best unit to use. Not a Universal fit but designed as a bolt in for specific vehicles
https://newportwipers.com/product/19...k/#wiper-motor

I've got a Specialty power windows kit for my 48 and most likely will use it as it is already paid for Bought before the Newport Engineering kits showed up and as I am not running a stock dash probably the best option for me although I would not recommend this unit WWK-4754-21 simply because I now believe that the newport kit is a better way to go. My kit is actually one step up from this one. https://www.ebay.com/itm/19563116905...0aAs3YEALw_wcB

[fauXGT]

mr48,
SPW deluxe kit is what I just finished installing, like last week. I had nothing for the existing hardware, and it was on sale 3 years ago, and cheaper than cobbling together a system, and has delay and washer.
The wiper arm gear threads don't like to take new outer chrome nuts, like the instructions say. You do have to retap the nuts to remove abit of chrome plating. Hand bend the tubes. Don't use a tool, being it will make dimples in the tubes. I made a mounting plate for the motor to bolt to the column inner support, placing it way back and an inch away from the cowl vent. The first tube from the motor is 180 deg sweep to drivers arm. I didn't think of the clearance for the drivers defroster diffuser, so I popped off the diffuser mounting bracket, re-welded it back on and cut it at an angle to push the hose port farther to the drivers side. I hoped that I could squeeze the wiper motor behind the fresh air box, but no go. That's where I placed the washer pump, being the factory glass bottle is mounted right there. I found a washer nozzle called a 'Turbo sprayer' on Amazon. Came from China and took 2 weeks, but has a very wide spray pattern. I placed it in the center of the cowl to hit both windows. Kinda discreet. The deluxe switch is a 'D' mount, so I took a factory bakelite knob and side filled it with JB weld. Cut down the switch shaft to get the knob closer to the dash. I hope I won't ever need the wipers, but at least they'll have it all.

[fauXGT]

Oh, and white lithium grease the hell out of the tubes as you push in the gear cable. Test run was very smooth.
And ouch for the newport motor. Add another $200 for linkage.

[mr48chev]

Normally the motor is mounted high on the left kick panel. At least that is how the instructions say to mount it and then run the tube up and over to the drivers side wiper and then run the tube from there to the passenger side and have a length of tube out beyond the passenger side a set amount. I need to buy new tubing when I move mine from the old cab to the new cab.

I'm going to have to contact them and get a new instruction sheet as I bought the kit three moves ago.