Changing Transmission

what engine do you have?

 

It all depends on what transmission you currently have, if you are already running a 15spd then you only have to worry about the little things like swapping the bell housing, rear output yoke, and getting the airlines right.

If your changing from something other than a 15spd you will have to do driveshaft work.

Also, it's a good time to inspect the clutch.

 

Good info and
a good tranmission jack makes it a lot easier, some are downright dangerous and require strapping the tranny to the jack, I borrowed one from a friend the last time and it fit like a glove, you couldn't knock it off if you tried. Also if you decide to replace the clutch be sure to resurface the flywheel, also a good time to replace the rear main seal in the engine, BUT ONLY IF IT IS LEAKING.

 

Don't fix it if it ain't broke. Some engines it is easy to knick and damage the crank or bell housing when replacing a rear main seal. Some things are better left untouched.

 

3406B - ouh yeah, no ECM programming! becouse no ECM....

 

Depending on what you've got now, you may not have to mess with the driveshaft.
http://www.roadranger.com/Roadranger/productssolutions/SpecificationGuide/LinehaulManual/index.htm

We swapped a Super 10 to a 13 a couple months ago, and the 13 went right in, driveshaft fit fine. If your clutch has much age on it at all, I think it would be silly not to change it while you've got the tranny out.

 

Yeah! no splitter... not so good!

I like 10 sp. Eaton. Very reliable tranny.