TTB MJ

Toymerica

New member
Picked up a 1989 Jeep Comanche 2wd long-bed from a friend in October. Front end damage had snapped the passenger knuckle, bent the upper & lower control arms and pushed the axle into the oilpan. I already have a straight axled toyota, and I decided a TTB build was in the making.

Want to start off this thread saying big thanks to my pal Jesse for letting me use his already cramped 1 car wide X 2 car deep garage & driveway space and for all of the help with the TTB swap. Couldn't have done it without him!

Current progress picture:



Vehicle specs(so far):
-1989 jeep Comanche pioneer long bed
-4.0 inline 6 motor
- Dana 44 TTB front axle(open 4.88s) 2.5 king coilovers and airbumps
-ford 9" fully trussed, Nodular third member & billet Pinion support, 35 spline chromoly spool, 35 spline chromoly shafts, 4.86 gears, disc brakes, pinion skid
-ruffstuff URC trailing arms king 2.5 14" dualrate coilovers & 2.5 4" bumps



scroll to see what a couple of 22 year old dudes are building in the driveway!

Here's it the day I bought it

 
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Toymerica

New member
While it was sitting on the curb, I picked up a non-op 1980 ford bronco off of Craigslist:


Scored in a big way with this thing. Ended up with a complete Dana 44 TTB, a ford 9" rear end, 5 bfg 33" ats on aluminum wheels, extended radius arms and Deaver F64 leaf packs.
 

Toymerica

New member
Once the bronco was dismantled, I started working on the Comanche every Saturday and Sunday I could if I didn't have work or college to catch up on.

Got the 2wd front axle out. Cut out, bent, and welded in some 3/16" plate for frame stiffeners.

 

Toymerica

New member
Grinded the beams down, ready for added plating, and made the start of the beam pivot crossmember. Plate is 3/16, axle pivot tabs are 1/4"

 

Toymerica

New member
Then came the fun, measuring, remeasuring, eyeballing and bending the 1&3/4" .250 wall DOM tubing for the cross member.

Got the front half bent up, and checking clearances(very tight squeeze)



Holding the third member up in there to check angles and clearances



Using a good ol' straight edge to figure out what angle to bend and notch the back half at so it catches the inside frame frail

 

Toymerica

New member
Here we have the rear support member in place looking good & both tubes tacked to the beam pivot plate we started with
 

Toymerica

New member
Here's the crossmember before welding it all up. We out that thing in and out with the jack a handful of times to make sure everything fit exactly where we wanted it and grinding the ends to finalize the notches.



 

Toymerica

New member
Also got the beams plated, and starting putting them in to do some cycling, and figure out radius arm mount location.

 

Toymerica

New member
Beams were in then it was time for radius arm modification and brackets.

Started off with stock sky jacket radius arms that I got off that bronco;



Hacked them, added a piece of tubing we bent to get the right angles, and put some Barnes 4x4 enduro joints on them. Plasma'd Out the brackets and got them all in.

 

Toymerica

New member
Time for shock hoops. Plasma'd out holes in the inner fenders for everything, bent up the hoops, tabbed them, and build a removable over the engine shock hoop cross member as well.

 

turbobrick

Active member
Wow, really solid work so far. I really like the idea, and especially the execution. I haven't seen ORIs on TTB before, seems like a great solution to the packaging mess it usually is. Subscribing to see where it goes.
 
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Dirty Harry

Moderator
Staff member
Cool! I just got back from prerunning the Baja 1000 with a friend that has TTB under his XJ and it worked great.
 

Toymerica

New member
Wow, really solid work so far. I really like the idea, and especially the execution. I haven't seen ORIs on TTB before, seems like a great solution the the packaging mess it usually is. Subscribing to see where it goes.
Thanks! Its been going pretty smoothly so far! Lots more work to do here before summer comes. I decided to give the ORIs a go and see how they do. If it turns into a full dessert truck in the future then I'll have to go to coilovers & bypasses.
 

Toymerica

New member
Cool! I just got back from prerunning the Baja 1000 with a friend that has TTB under his XJ and it worked great.
So sick! I'm going to DD this Comanche for a while and use it mainly as a go-fast/overland rig for now, and have high hopes of turning into a dessert truck later in its life.
 

Toymerica

New member
1&1/2" .250 wall Dom links. Heimed all around. And welded up the pitman arm for a double shear setup.

Full droop


Ride height
 
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