09-21-2007, 10:27 PM
This build started as a BW1350 twin stick & it can be done the doubler case goes behind the t-case but i'd have to build bearing blocks, shafts, move rear axle back and more modifying than I wanted to do so i opted for what all RBV wheelers do, a doubler. A lot more to it than posted here. But here's the skinny of it.
The patient
The transplant
The operating room (my machine shop)
Remove planetary from doubler case
Split the case
Back half & parts junk (unless u need them krazybronco)
Layout adapter plate & transfer holes
Cut plate
Machining output shaft (others have used shafts from trannys and pressed and welded but I wanted more strength pics show what I mean)
Turning output shaft
Machining splines on output
Boring sector shaft
Cutting square bore in sector shaft (this is for torque strength)
Machining square on output shaft to press into sector shaft
shafts machined
Pressed & welded
Boring adapter plate
Machining doubler case for filler block
Locating bore for drilling mounting holes
Drilling holes for mounting to t-case planetary cover
Adapter plate done
Doubler case and parts ready for assembly
Transfer & drill & tap holes in t-case planetary cover
Now I'm ready for assembly (I hope!)
Put front cover on t-case
Bolt adapter plate to doubler case
From inside doubler case bolt to t-case w/ 20 1/4 SHCS
Next installed shift rail (length cut) shift fork and sector shaft outer-spline
Install planetary set in doubler case then bolt t-case to doubler case
Shifter linkage. This was the hardest part I opted to use manual shift cases cause I don't like electric shift. I had about 2 days of design in it trying to clear everything & make the shifter & arm on the t-case travel the same distance on a different radius
Everything installed (I hope again)
Two manual shifters one shift knob (shift knob donations please)
The patient
The transplant
The operating room (my machine shop)
Remove planetary from doubler case
Split the case
Back half & parts junk (unless u need them krazybronco)
Layout adapter plate & transfer holes
Cut plate
Machining output shaft (others have used shafts from trannys and pressed and welded but I wanted more strength pics show what I mean)
Turning output shaft
Machining splines on output
Boring sector shaft
Cutting square bore in sector shaft (this is for torque strength)
Machining square on output shaft to press into sector shaft
shafts machined
Pressed & welded
Boring adapter plate
Machining doubler case for filler block
Locating bore for drilling mounting holes
Drilling holes for mounting to t-case planetary cover
Adapter plate done
Doubler case and parts ready for assembly
Transfer & drill & tap holes in t-case planetary cover
Now I'm ready for assembly (I hope!)
Put front cover on t-case
Bolt adapter plate to doubler case
From inside doubler case bolt to t-case w/ 20 1/4 SHCS
Next installed shift rail (length cut) shift fork and sector shaft outer-spline
Install planetary set in doubler case then bolt t-case to doubler case
Shifter linkage. This was the hardest part I opted to use manual shift cases cause I don't like electric shift. I had about 2 days of design in it trying to clear everything & make the shifter & arm on the t-case travel the same distance on a different radius
Everything installed (I hope again)
Two manual shifters one shift knob (shift knob donations please)
'85 Bronco II 7" lift
BW1350 doubled 85:1 final crawl
Hydro-assist steering
Dana 44 front lincoln locked
Ford 9" rear trac-loc
Mile Marker 8000# winch
http://www.gulchesorvpark.com
BW1350 doubled 85:1 final crawl
Hydro-assist steering
Dana 44 front lincoln locked
Ford 9" rear trac-loc
Mile Marker 8000# winch
http://www.gulchesorvpark.com