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09-07-2007, 01:39 AM
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Banned
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Join Date: Feb 2005
Location: Westwwod, CA.
Posts: 2,501
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Re: Power Liftgate
Thanks, Taz. I'm thinking the easiest set-up would be an actuator which attaches to the gas strut attachment points. If I get around to prototyping you will know.
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09-08-2007, 10:00 PM
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Hummer Professional
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Join Date: Aug 2007
Location: western kansas
Posts: 382
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Re: Power Liftgate
I would be interested in doing that to mine as well. That is about the only thing that I miss from my Lincoln Navi. Please post pics if you get it done.
dk
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Darin Kaiser 
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09-09-2007, 01:14 AM
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Banned
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Join Date: Feb 2005
Location: Westwwod, CA.
Posts: 2,501
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Re: Power Liftgate
When I do, I will, definitely.
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09-13-2007, 04:22 AM
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Hummer Authority
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Join Date: Nov 2004
Location: Little Rock, Arkansas
Posts: 1,784
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Re: Power Liftgate
tower,
Have you decided to go with the actuator arms for hatch door? I have been looking around and it seems the only way to go if a proper length is found and also has the gearing to pull door closed securely.
TAZ
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05 H2 SUV cus. paint, Magnuson SC 6/12lb boost, cowl hood scoop, 12" dash touchscreen, GM elec. fans, HPTuners.com tuning soft., Dynatech headers dual catback exhaust Jet Hot chrome front to back Flowmaster Super 40's, Diamo 8 Karat rims & 325X60-20" Toyo, 4 OEM Captain seats Katzkins leather, rear console computer inside running all AV/NAV etc., Infinity component system 3 amps Tsunami Caps, rear flip down 12" monitor, headrest monitors, overhead console boost, fuel pressure, & A/F ratio gauges
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09-13-2007, 06:03 AM
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Banned
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Join Date: Feb 2005
Location: Westwwod, CA.
Posts: 2,501
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Re: Power Liftgate
Taz,
I finally got around to measuring the struts today. It looks like when fully open, the exposed rod measures around 7.25". So I'm thinking an 8" actuator should get it (you can set a limit on the extension). I didn't measure how much is exposed when the door is shut, but I'm thinking it must be less than 2" (the next size down is 6"). I will measure when closed anon. The 24" linear actuator has an 800 lb. pull. The shorter ones are 300 lbs. I'm guessing 300 will be enough. But I'm thinking I will need a second actuator built inside of the door to mimic the pulling out of the external door handle from inside the door. That could really complicate things. (It's either that or remove the latch completely which raises all sorts of liability issues should something or someone fall out the back while on the road.) Any input from you will be greatly appreciated. 
~ron
Last edited by tower : 09-13-2007 at 06:16 AM.
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09-15-2007, 05:41 AM
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Banned
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Join Date: Feb 2005
Location: Westwwod, CA.
Posts: 2,501
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Re: Power Liftgate
I spoke with one of the manufacturers today. I was wrong, the shorter actuator is rated @ 250 lbs. I asked if only having one on one side would torque the liftgate and he said it might be best to go with 2 (one on each side). I don't know if that's true or if he just wants to sell me a second (expensive) actuator. For the door latch, he said I could probably use a less expensive (lower mass capacity) actuator, but that I needed to feel how much push was needed to trigger the latch. I guess I'll need to tear open the door skin and find out. He also sent me a spec sheet for the actuator. I need to see if the width will fit into the gas strut cavity. TBC...
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