Landing gear preload tools

[Sabremech]

New manufacture Mooney landing gear preload inspection tools P/N's 8442 and 8444. $235 plus shipping for a set.

 E-mail david@vintageairworks.com or call 262-914-9589

 

[duke]

G0t mine a few days ago---very pleased at the quality

[rbridges]

The previous owner to my plane had them, so I bought them from him.  I know they're for preload, but how are they used?

[1964-M20E]

Rob You will need a dial indicating torque wrench with a memory needle I find is the best. They run $150 to $200 look in the service manual to get the torque range you need. A torsion bar torque wrench will work but you have to look at several things at one time to get r done. The click style wrenchs I have not figured out how to make them work for this.

[Sabremech]

Here's a copy of the pages out of the maintenance manual describing the use of these tools.

 

 

[Sabremech]

I just want to thank those customers who purchased these tools. I'd appreciate any feedback if you'd like to share it here. It's my goal to produce and sell quality tools at reasonable prices.

 Thanks again,

 

 David Staffeldt

 Vintage Airworks

[Steve Campbell]

On 2/3/2013 at 3:30 PM, Sabremech said:

New manufacture Mooney landing gear preload inspection tools P/N's 8442 and 8444. $235 plus shipping for a set.

 E-mail david@vintageairworks.com or call 262-914-9589

 

are these tools still available ?

[Sabremech]

3 hours ago, Steve Campbell said:

are these tools still available ?

Hi Steve,

I stopped making these tools last year. 
Thank you,

David

[hammdo]

Boy, glad I got mine... Lasar may have them. Might try there...

-Don

[kortopates]

they've always been available on Ebay.


Sent from my iPhone using Tapatalk

[RLCarter]

Purchased mine through LASAR

[FloridaMan]

@Sabremech are there dimensioned mechanical drawings for these anywhere? I could possibly do a production run of these. 

[Sabremech]

8 hours ago, FloridaMan said:

@Sabremech are there dimensioned mechanical drawings for these anywhere? I could possibly do a production run of these. 

I can see if I can get you a copy of my drawings. Not sure they will be 3D as I believe the parts were water or laser jet cut then welded. I’ll get back with you next week if ok? 

[Manual gear preload check]

I have a set of original Mooney manual gear preload tools if anyone is interested. 
$200 for both nose and main tools.

[carusoam]

Welcome aboard Tim the Tool Man!

Stand by... there is usually a good amount of interest in tools like these...

It helps if you can post pics...

Best regards,

-a-

[RJHank]

I had an original set of 8444 and 8442 tools that I had given to my I/A to check the downlock tension on my M20C during an annual check.  When I got my plane back he gave me a different set of tools that had some of the paint wore off of them.  To make a long story short, I went to do the check myself but the 8444 tool seemed to long for my gear.  Do you have dimensions I could use to verify the authenticity of my tool?  Inside length of where tool presses against landing gear to where the push up point is located?  Basically the overall length of the tool.  Thanks for any help.  If you can, please send to rjhank@sbcglobal.net.  Thanks.

[Sabremech]

On 8/13/2025 at 3:18 PM, RJHank said:

I had an original set of 8444 and 8442 tools that I had given to my I/A to check the downlock tension on my M20C during an annual check.  When I got my plane back he gave me a different set of tools that had some of the paint wore off of them.  To make a long story short, I went to do the check myself but the 8444 tool seemed to long for my gear.  Do you have dimensions I could use to verify the authenticity of my tool?  Inside length of where tool presses against landing gear to where the push up point is located?  Basically the overall length of the tool.  Thanks for any help.  If you can, please send to rjhank@sbcglobal.net.  Thanks.

I can get that for you. 
David