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The kit is B Vent and not stainless steel. A lot of places require stainless for horizontal.

I measured it out to see how much of an angle the opener would be at mounted upside down and it is about 30 degrees. Not 45 but would need some additional support to say the least.

The liftmaster 3800 is officially a no go on my 16x9 garage door. It has found its home on my first stall which is also the most often used stall. The final install took under 2 hours (still need to remove old opener). I guess after messing with it enough on the other door that gave me...

I'm going to have the local garage door install place that originally put the door in come and give me a quote. I'm going to have him Quote me if it is possible to reverse the cable down the back side of the drum (this would also require the torsion spring to be rewound the opposite way and...

Mounting the 3800 upside down would by all means be the simplest solution but my torsion bar is so high the unit would hit the ceiling. I could create an angled mount but I think getting a chain driven unit is going to be the best option...that is if the 3.5"s at the end of my top rail is enough.

I recently purchased off of Amazon the liftmaster 3800 to go onto the below 16'x9' garage door. The door is on a torsion bar and a double track setup. What I didn't know was that the garage door is a low overhead room setup with the wheels on the outside of the track and are also reverse wound...

Hi, I recently purchased a Liftmaster 3800 and google has brought me to this site. After living in my first home for 3 years and getting an additional vehicle it was time to put a garage door opener in my far garage. The liftmaster 3800 seemed perfect for my high lift door but turns out it...