Converting M38A1 to electric wipers

Hartspass · Post by **Hartspass** » Mon Jul 15, 2024 4:34 pm

Installing the electric wipers on my 1965 M38-A1 is my first project, it did not come with any wipers installed. Is there any specific diagrams for the seals or diagrams for installation?

Post by **wesk** » Mon Jul 15, 2024 6:13 pm

All you get is TM 9-8012 Page 99, 316 thru 320.

TM 8015-2 pages 243 thru 251

ORD 9 SNL G-758 pages 363 Figure 22-1 and pages 368 thru 372.

Do you have a stock M38A1 windshield? Does your windshield have the holes in already?

Hartspass · Post by **Hartspass** » Mon Jul 15, 2024 8:20 pm

I believe it is the correct windshield, it has on each side 3 holes, a larger middle hole measuring 3/4” for wiper shaft and 2 3/16” holes, one on each side.

The manuals I have are ORD 9 SNL G-758 and TM9-804 A, admittedly no electric wiper motor there. I’ll buy the others.

On the wiper shaft is it two shaft layers joined by a press fit? If so, Carl Walck mentioned using a fine tooth hacksaw to cut the outer shell. I’m trying to confirm before I slice and dice things.

RonD2 · Post by **RonD2** » Mon Jul 15, 2024 9:40 pm

Hartspass wrote:On the wiper shaft is it two shaft layers joined by a press fit? If so, Carl Walck mentioned using a fine tooth hacksaw to cut the outer shell. I’m trying to confirm before I slice and dice things.

Not exactly sure what you're doing or why, but you might consider using a tubing cutter on the outer shell instead of a hacksaw.

Good luck!

Post by **wesk** » Tue Jul 16, 2024 2:13 am

Hartspass,

If you have the stock M38A1 windshield and the correct Vacuum wiper motor then you have nothing that needs to be cut! What part number wiper motor do you have? There was one used early in both M38 & M38A1 Trico PN 63527 and one introduced later as a supersedure for both Trico PN S583-1.

You can go to my photo album and review the wiper discriptions and parts list: http://www.willysmjeeps.com/v2/modules. ... _album.php

You can go to our "Downloads" page and get your missing manuals. http://www.willysmjeeps.com/v2/modules. ... oad&cid=80

Hartspass · Post by **Hartspass** » Tue Jul 16, 2024 4:05 am

Wesk my M38-A1 had no wipers mounted on the windsheild so I decided it was easier and safer to go with electric wipers since I live in Western Washington and it rains a lot here..I also have a Dauntless V-6 engine under the hood.

RonD2 I hadn’t thought of using a tube cutter instead of hacksaw. Carl in this video was suggesting using a fine tooth hacksaw to carefully cut with. https://youtu.be/kZQ7e698sBA?si=4G8x5GP9vHVGDkef.

My jeep is a recent purchase and I’ve got some things to do to it so I can drive it, such as wiring and installing the license frames, wiper motors, modifying the wheel wells and moving seat frame back since I’m tall. It’s been years since I’ve done this so I’ve been reorganizing my garage and collecting my tools together since the passing of my wife.

Post by **wesk** » Tue Jul 16, 2024 10:26 am

I have split your posting and it's replies from the old 2010 post you had attached it to. Too easy to mix parts of the old post with the new post info. So now all replies will apply only to your original post.

The manuals I listed are still necessary for working on your jeep however none specifically cover an electric conversion.

I will suggest one more excellent manual for a person who desires to make modern improvements to his or her's antique /classic jeeps.

Moses Ludel's "Jeep CJ Rebuilder's Manual 1946-71. This manual contains many interesting upgrades for universal style jeeps of our year groups.

Hartspass · Post by **Hartspass** » Tue Jul 16, 2024 10:47 am

wesk thank you. I ordered the manual today and it comes tomorrow.