Product Description
1978-1987 GM G-Body Front Doors-(Includes Motor Plugs & Terminals) (NOTE: there may be a production delay of possibly 4-6 weeks) Expected mid-late November 2023
BRAND 1978-1987 GM G-Body Front Door Power Window Kit (Sold as a pair of regulators (RH & LH))
Kit includes: 2 regulators (left & right side), 2 new motors, motor plugs and terminals for your wiring.
You will be amazed at the improved function and speed of your power windows once having these new POWER REGULATORS INSTALLED. (made in the USA)
- NOTE: Please note, you can not use just any motor. Our product warranty will only cover the operation of the regulator with our supplied motor using/following provided instructions/guidelines. It has been known, that other motors may not function properly and/or fail. Use of any other motor or improper installation will void warranty.
- The front door regulator mounts into the original power regulator holes.
- Note: Our motors are special reverse polarity motors and require reverse polarity switches. Most Grand Nationals have the correct switch which has 5 poles on the back of the switch as seen in this picture:
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New ACI Motor AMP Draws
No Load amps Low Load amps High Load amps Stall amps 3 5 11 20 ACI Motors are Reverse PolarityThis means that the ground for the system must come out of the master switch. There are 2 poles on the motor - to make it operate,you must put power to one side then ground to the other side - NOT to the motor case. This will result in the motor turning in one direction.By swapping the wires from side to side, the direction will change.Fuses or Circuit Breakers - 30 AMPMost of our harnesses will come with an in-line 30 AMP fuse. If you prefer, a circuit breaker will work too.You can hook your windows up to a variety of different power sources.Some options are:Straight to the battery (Windows should not have any battery draw when not in use).Find extra slot in fuse panel - tie in using the supplied fuse.Pull power from the key-on side of the switchRelaysIn most cases, you will not need to use a relay to boost amperage to the motors. The switches and wiring we use can handle the amp draws.If you are using old style 3 pole switches, a special relay is needed to reverse the polarity at the motor. These do not increase amperage,
they just swap the ground from side to side. we have these available (prewired). Call us at 336-699-8949 for assistance.
Grease & Oil1. On the regulator gear teeth and roller tracks, we recommend using a high temp automotive wheel bearing and chassis lubricant.
NLGI grade 2 is one option2. Avoid the older soap based lithium grease - it sets up hard in cold weather making the windows harder to move3. A few drops of light weight oil in the pivot points will allow the Bronze Oilite ® bushings to work smoothly and reduce wear.4. On fuzzy runs and weather stripping - some 3M Silicone spray can help with break in5. Use Die-Electric grease or Tuner Lube on all terminals and connections. This protects against moisture and corrosion.
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Product Reviews
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Great product
Could not ask for better product and service perfect fit and works better then original
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Window regulator
I bought both sides, you can not go wrong with these, excellent fit, easy to install. Much more robust than originals. My windows never worked better. Jon limes
