2 to 3 speed wiper motor

[Nevada dan]

my 68 roadrunner had a 2 speed wiper motor and I needed the 3 speed for air cleaner clearance , switching to air grabber type , so they both have the same 4 wire harness, brown red green blue , now for the switch the three speed switch has an extra terminal on it , when I was rebuilding my dash and putting the wiper switch and pump switch I noticed an extra brown wire on the harness, is that for the extra terminal on my new 3 speed switch , that's what I'm assuming that they wouldn't have 2 different harnesses for the wiper option, has anyone changed this over like me and know for sure

 

[Sahara]

Following. I’m doing the same thing for the same reason.

 

[pnora]

Yes it goes to the three speed switch.

 

[Toxic Orange 493]

http://www.passion4mopars.com/Mopar-2-Speed-to-3-Speed-Mopar-Wiper-Motor-Conversion_b_1.html

 

[Nevada dan]

when my switch gets here I'll try it and post the results

 

[1968rt]

Do you need the clearance for a six pack air cleaner? they can be trimmed to use a two speed wiper

 

[Nevada dan]

I put a high rise with the single 4 , got the base for the 440 because its lower but the top is what hits the wiper motor

 

[MoparLeo]

I believe the linkage is also different on a 2 speed vs. 3 speed.
Contact member Bruce at ns1aar. Wiper motors is what he does.
http://www.ns1aar.com/

 

[1968rt]

I trimmed the air cleaner back so I can use a two speed wiper.

 

[Nevada dan]

I finally got the 3 speed switch ,put it in this morning the plug fit right on and plugged in the brown wire on the extra tab , turned the key on tried the switch and it works great

 

[gtx6970]

Underdash linkage is the same EXCEPT for the nylon bushing in the crank arm

http://www.dynamicrenovation.net/viewcategory.php?groupid=2

 

[Nevada dan]

I used crank arm #2770176 the only difference is the slotted hole , the bushing and clip are the same