Mopar Muscle Association UK

Is this possible. Will it just fit in as long as I figure the wiring out?
Has anyone done it ?

Good luck

drewcrane wrote:Good luck

Both correct for a challenger (different years/possibly different assembly plants) and the bolt pattern is the same with the earth strap in the right place. Just concerned about whether I can make the wiring cooperate.

Is one not a 3 speed and the other 2 speed?? (whats wrong with the 1st one??

They also have to match the dash switch the earlier switches had a rheostat,later on they went with a three speed switch,and as mentioned they also had a 2 speed, so they must match up ,because I used a 2 speed on my car got the wiring to work, but as hard as I tried it would not park the wipers.then I found the correct switch it worked for a while, but it never worked right ,so I did have to spend the money and locate rebuilt switch,and wiper motor, now it works great ,some thing like that would be to expensive for you.

You might see if someone can rebuild the motor that came with the car .

kma176 wrote:Is one not a 3 speed and the other 2 speed?? (whats wrong with the 1st one??

Sadly, the 3-speed works on flexi-time. Might do two passes and then just stop. If I'm lucky it'll do three, but it does stop. I've then got to wait a short while and twist the knob back n forth to get it to go again ( for another 3 passes ).
Hence wanting to change.

It should be fine, if it mounts up and the wiper arm linkage fits, then it should be a simple case of elimination with a meter to find out which wire is which.
You might need an assistant to move the switch while you check which wire is getting 12v at any one time. Make sure you figure out which wire is the earth first or you'll be under the dash replacing fuses. Might be worth having a few spare ones on hand, just in case.
Also, once you have the wiring figured out, just check the rotation of the motor is correct before you connect the wiper arm, to avoid any damage.

If you have to fiddle with the switch to get them to work are you sure the switch isn't playing up when under load???

kma176 wrote:If you have to fiddle with the switch to get them to work are you sure the switch isn't playing up when under load???

Potentially- hadn't thought of that. Thankfully have a spare switch to try.

So upon closer inspection it seems that I have a 3-speed motor coupled to a 2- speed switch. I think the original build would've had a 2-speed motor, hence the wiring birdnest at the bulkhead (which the previous owner then proceeded to spray all the wires black whilst painting engine compartment and bulkhead)!
So I guess, take the spare 3-speed switch and see if I can mate that to the wiring behind the dash as I'd guess an easier elimination project where I can at least trace wiring colours. Hopefully this will sort the running, stopping and non-docking issues.
Any tips, don't hold back.

Yes match up the correct switch,use a little lacquer thinner to clean the wires enough to see the colors ,and use the diagram I posted earlier ,and then trouble shoot, also make sure the whole switch panel is grounded(earth) ,other wise the wipers will never park