Who makes a under drive trans for the Mazda 5speed. I contacted Gearvendors and they do not. They also said there unit does not go below 1st gear. I would like to slow down my 1st and reverse gears some.

 

Cheaper to change the differential than the trans.

 

To get 1st gear low enough I would need about 5.14 rear gear. My truck would be useless for regular driving. I want to be able to slow down 1st and rev. When moving trailers around. Once moving my gear ratios are fine.

 

Type “auxiliary transmissions” in your web search engine and you should find lots of potential vendors. MSN turned up over 11,000 hits. I did not see anything for the M5OD transmission, but surely somebody makes one or would modify the mounting system to work for you. If nothing else, call Advance Adaptors @ 805-238-7000 and see if they offer an adaptor kit for the M5OD or can give you any ideas where to begin looking.

Another option might be to look for a two-speed differential. I have not seen one of these in years, but they used to be available for one-ton trucks so you might be able to find something that would fit in the F150.

 

Thanks I will do some more research. The guy I spoke with at GearVendors said not easy to attach to the rear of the MAzda 5speed. My other thought was to swap a warner T18 4 speed with the super low and lwer reverse. I have a spare T18 trans but don't know the cost or problems with the swap. I would still need an overdrive..

 

Install a TCase . with a granny low in it. that would do the trick I would imagine.

 

It could be a myth but I’ve always heard you can’t use a transfer case strictly for gear reduction. Supposedly the torque reduction is all out of wack if you don’t use both drivelines and the internal strain will take out the bearing in short order. Who knows?

If it would work that would be a pretty easy solution…

 

that may be true, I just thought of it off the top of my head. so who knows. I learn something new every dy

 

You might give these folks a call. They may be able to help you.



George