Weird 1971 Challenger Window Motor Question

[Daveh]

Hey guys,

I'm replacing my window motors on my 71 Challenger and I've encountered a small issue.  I've attached 3 pics one with the new motor and one with the old motor which obviously match when you look at the pics.  But the plate that goes over the gear has one small screw holding it in place before its finally bolted to the regulator. 

As you can see in the pics the small screw hole is in a different location on the new motor.  So my question to you is do I just modify the plate by drilling out the larger hole and then putting the small screw in the other other hole with a thin washer?  What are your thoughts?

Thanks
Dave

[Cuda Cody]

I've not been lucky enough to have power windows on an e-body, so this is all new to me.  But if they are not too expensive for the reman motors I would just drill the hole out and make it work.  Maybe put a little blue loctite on them when install it too.   

[1 Wild R/T]

A few questions for you... Are you adding relays? Cause if you aren't you should.... Are you locked into your new motors or can you return them?... FWIW When I first saw these new motors I had serious doubts, but I'd heard a few good reports so I bought one to try it out.... Since then I've bought seven more, I've fully converted one car & I'll be doing another very soon... These things seem to run twice as fast as the OE design.... I really new to shoot a video of my windows operating. I can rate or lower all four windows at the same time & from fully up to fully lowered on all four takes maybe five seconds.....

[Daveh]

Yes I am running relays and I did purchase those motors first. I would have needed to modify the regulators heavily to get them to work and even then I wasn't sure the gears would line up perfectly.  I posted that on the old Cuda Challenger site a long time ago and I didn't get a positive response to modifying the regulators. 

[1 Wild R/T]

I didn't need to modify anything. they bolted right up......   I don't doubt I would have posted a negative opinion of them initially but after trying them I gotta say I'm impressed....

[Daveh]

What's the part number?  What year car are you putting them in?  They look like the exact ones that I bought.  I wonder if convertible regulators are different?  I know the glass is different.  Thanks for the responses. 

[1 Wild R/T]

2 of each Dorman 742-300 & 742-301

70 Challenger R/T Convertible.....

[Daveh]

Thanks I tried those and they didn't work.  Weren't even close to lining up.  Here is my post from the other site. 

http://www.cuda-challenger.com/cc/index.php?topic=116274.msg1140297#msg1140297

[1 Wild R/T]

Looks like the ones you bought were the ACI's not the Dormans... No biggie, just saying they bolted right up for me & work great....

[Daveh]

Were your bolt holes threaded like the originals?  Mine weren't and like I said the holes didn't come close to matching up.  It's very frustrating. That's why I bought the originals figuring no problem since I have the relay kit and now I have to modify the gear cover plate.  It just doesn't make sense to me.   

I fell like I'm missing something????   Can you sense my frustraition???     I have to buy this stuff online and that takes more time and money. Don't know of anyone locally that sells them or I would try again. 

[71GranCoupe]

Were your bolt holes threaded like the originals?  Mine weren't and like I said the holes didn't come close to matching up.  It's very frustrating. That's why I bought the originals figuring no problem since I have the relay kit and now I have to modify the gear cover plate.  It just doesn't make sense to me.   

I fell like I'm missing something????   Can you sense my frustraition???     I have to buy this stuff online and that takes more time and money. Don't know of anyone locally that sells them or I would try again.

You may want to look at Rock Auto and see if they have what you need. Good prices, fast shipping. 

[Blake@diyhemi.com]

All my original 1970 motors work but I'm upgrading to the new motors for speed and reliability. I am following this thread for updates!


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[1 Wild R/T]

All my original 1970 motors work but I'm upgrading to the new motors for speed and reliability. I am following this thread for updates!


Sent from my iPhone using Tapatalk

If you want speed  & reliability don't forget to add relays....

[1 Wild R/T]

Were your bolt holes threaded like the originals?  Mine weren't and like I said the holes didn't come close to matching up.  It's very frustrating. That's why I bought the originals figuring no problem since I have the relay kit and now I have to modify the gear cover plate.  It just doesn't make sense to me.   

I fell like I'm missing something????   Can you sense my frustraition???     I have to buy this stuff online and that takes more time and money. Don't know of anyone locally that sells them or I would try again.

Well first off the original motor you have isn't correct, the replacement is....   I wish I'd taken allot of photos when I upgraded my car but I didn't, I'll try to do better on the next car for my buddy... I can go snap photos of my original motors if it would help, all four are unique but the replacements are the same front to rear but mirror image from side to side....  But on all of the originals the small screw is in the hole opposite the motor shaft...

I got my motors through Amazon, pretty cheap... The holes where the attaching screws go are not threaded but that area is plastic, I just reused my original bolts & they cut new threads without any problem... 

[Blake@diyhemi.com]

All my original 1970 motors work but I'm upgrading to the new motors for speed and reliability. I am following this thread for updates!


Sent from my iPhone using Tapatalk

If you want speed  & reliability don't forget to add relays....

Oh yes, I'm going to run them through a ron francis black box with independent relay functions for up and down, including auto-down function


Sent from my iPhone using Tapatalk