Trans Doc Transmissions

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Trans Doc Transmissions Transmission, Transfer Case, & Differential -Repair -Service & Rebuilds in Post Falls, Idaho We provide our clients with auto repair services.

Trans Doc Transmissions is a locally owned and operated business since 1974. We repair and rebuild all types of transmissions, including manual, automatic and computer-controlled systems. We specialize in gear ratio changes and posi rack installation. Contact us today for more information.

10/20/2026
Thanks for all the help on this one. 6R140 unit built to perform with updated Sonnax shift kit and over sized spool valv...
10/20/2026

Thanks for all the help on this one. 6R140 unit built to perform with updated Sonnax shift kit and over sized spool valves. Vacuum tested and ready for install.

10/13/2026

8 Speed GM Valve Body getting a full makeover. Thanks to all the aftermarket who help us get these gmc’s and Chevy’s (8speed transmissions) shifting smoother than new. Sonnax

Happy Hump Day!Another 6 Speed day for us. Love the Sonnax and Transgo tech materials that make these transmission perf...
09/16/2026

Happy Hump Day!
Another 6 Speed day for us. Love the Sonnax and Transgo tech materials that make these transmission perform better and last longer.

6R140 magic 🪄🪄
08/19/2026

6R140 magic 🪄🪄

Just a couple fresh pictures of 68RFE components. More build pics to come.
08/15/2026

Just a couple fresh pictures of 68RFE components. More build pics to come.

08/13/2026

Automatic and manual transmission repair and rebuilds

Some of the builds from this week. 
08/13/2026

Some of the builds from this week. 

Thanks Sonnax for your help with these 6F35 transmissions. Building confidence into every unit.
04/16/2026

Thanks Sonnax for your help with these 6F35 transmissions.
Building confidence into every unit.

Address

515 E 3rd Avenue
Post Falls, ID
83854

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+12087737715

Website

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