Transmission & Drivetrain Gearboxes, Differentials, Clutches

Honda Mainshaft Holder Tool

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Old Jun 4, 2017 | 09:34 AM
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Default Honda Mainshaft Holder Tool

Is there anyone here that would be so kind to allow me to rent your 07GAB-PF50101 Honda Mainshaft Holder tool?
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Old Jun 6, 2017 | 05:07 PM
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Default Re: Honda Mainshaft Holder Tool

blocks of wood and a c clamp
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Old Jun 7, 2017 | 10:12 AM
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Default Re: Honda Mainshaft Holder Tool

The mainshaft holder tool is for checking the mainshaft clearance, blocks and wood and a c-clamp won't work.
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Old Jun 7, 2017 | 12:31 PM
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Default Re: Honda Mainshaft Holder Tool

I actually need it to hold the mainshaft while i torque down a bolt that sits on top of the 1st clutch pack in an m4ta crv auto transmission. If i wedge in a pry bar into the gears below it, the clutch pack just turns the mainshaft.

The blocks of wood and clamp didnt work....
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Old Jun 7, 2017 | 03:19 PM
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Default Re: Honda Mainshaft Holder Tool

Ah, I didn't look up the P/N. I presume you already asked your local Honda dealer? Most private shops won't rent or loan out tools. You can try automotivespecialtytool.net
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Old Jun 7, 2017 | 04:38 PM
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Default Re: Honda Mainshaft Holder Tool

Yeah I actually bit the bullet and bought the dang $85 one-time-use-for-one-purpose tool from hondapartsnow.com but they will have to order it from wherever because its not in stock.

Im still open to renting it out from anyone here if you guys have access to it.
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Old Jun 7, 2017 | 09:26 PM
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Default Re: Honda Mainshaft Holder Tool

07GAB-PF50101 | Honda MAINSHAFT HOLDER - Bernardi Parts
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Old Dec 4, 2024 | 07:29 AM
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Default Re: Honda Mainshaft Holder Tool

I used a 22mm box end wrench, then packed the groves with finish nails. I used 2 different sizes of finish nails, some I had to gently tap in with a nail set and hammer. Once the wrench was firmly attached (no wobble) and turned the shaft, I then put a small bolt in one of the bellhousing holes to keep the wrench from turning. For me (SDMA trans) the mainshaft nut was a left handed thread, so I turned clockwise to loosen it. Worked great and was pretty quick.
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Old Dec 13, 2024 | 01:07 PM
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Default Re: Honda Mainshaft Holder Tool

wait I think I've done this before. if the transmission is in the car than the frame is holding it while you torque the nut right? dude all you need to do is shove a rag into the gears to jam it in place while you use a ratchet to torque the nut down.
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Old Dec 14, 2024 | 06:45 AM
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Default Re: Honda Mainshaft Holder Tool

Mine was out for a rebuild. Broken diff.
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Old Dec 16, 2024 | 10:38 PM
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Default Re: Honda Mainshaft Holder Tool

Originally Posted by kabrilake
Mine was out for a rebuild. Broken diff.
it's the same concept, have someone strong hold it while you torque it or weld/ DIY a support brace to hold it. tell some guy at the gym you'll buy him snacks or drinks if he will hold the case while you wrench it. take off your shirt or underwear and jam it into the gears, you don't need a special $100 tool .don't use a impact wrench, the torque spec is specific
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