Author Topic: FM 145 km 145 tranny combo  (Read 688 times)

No_Coast_Hooligan

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FM 145 km 145 tranny combo
« on: August 22, 2018, 08:12:35 PM »
Found a few topics but no solid answers. Anyone put fm145 guts and back half in a km 145 case ?  This way you can get the shifter out of the t-case and can bolt on a bw1350 or bw1350 doubler combo with better low gearing options then Marks 4wd.

TOASTY

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Re: FM 145 km 145 tranny combo
« Reply #1 on: August 22, 2018, 08:51:23 PM »
 So you also have a 4 cylinder rig? Think you could swap the entire FM145?

No_Coast_Hooligan

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Re: FM 145 km 145 tranny combo
« Reply #2 on: August 22, 2018, 09:23:59 PM »
yes a 2.6 .The FM has a removable bell housing and I think the ford bolt pattern is different. The other thing I think the ford uses a internal slave cyl. I have not found a FM yet to put them side by side. But a few pics on the net kinda makes it look like the guts and back half will bolt on to the KM. Not sure how the input shafts compare but might be able to mix and match. Headed to Moab in Oct I want lower gearing this time I'm about to pull the trigger on Marks gears but I'd rather do this.

TOASTY

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Re: FM 145 km 145 tranny combo
« Reply #3 on: August 23, 2018, 12:21:14 PM »
 If you can find one, the FM145 from a diesel Ranger would have the proper bellhousing for your 2.6, have you thought about just whipping in a KM148 and being done with the manual? Then you can swap what ever case you want within reason.

 The 2.85's are pretty decent, it seems like a bunch of money considering that 2.72 NP231's are basically free but by the time you factor good driveshafts, making your speedometer work again and actually getting the Jeep case to fit the tunnel it really starts to sound good. I have done a NP231 swap, NP241OR swap, 231/D20 swap AND i've used Mark's gears, they're so much easier and well behaved in comparison to American T-cases. They shift tight, they're quiet and strong just not super low. I love my 4:1 case but it's not as refined as my old 3.15 T-case, and the 2.85's still give you that OH YEAH! feeling.

No_Coast_Hooligan

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Re: FM 145 km 145 tranny combo
« Reply #4 on: August 24, 2018, 08:54:25 PM »
Pulled the trigger on the Marks gears. But still want to see if this leads anywhere. An auto would be cool but they seem to be pretty rare in the 2.6 and have never seen one in my area. Called Midwest trans and talked to a guy who seemed to know his shit but he couldn't really answer my question of if this would work. I'm sure he was asking him self WTF why would anyone want to. As far as drive lines go maybe I'll get lucky and the splines will be the same and I can use the montero stuff. I'm still looking for a fm145. Started tearing down my spare t-case to put the marks gears in and pulled the km apart a little.

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Re: FM 145 km 145 tranny combo
« Reply #5 on: August 24, 2018, 09:04:25 PM »
 Bad ass dude, the gears kick ass, I'm on my 3rd set (all different trucks).

plh

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Re: FM 145 km 145 tranny combo
« Reply #6 on: October 19, 2018, 08:30:50 AM »
I do have a 4D55 diesel ranger bellhousing to FM145 in my spares.  Certainly would be willing to sell it.  It does use an internal slave.
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