Remote mount LT230 TC options
I am starting a build of an Isuzu conversion (into a 2A Forward Control) in which I intend to use an Isuzu engine & 5 speed gearbox (4JH1 & MYY5T) and a remote mounted LT230 transfer box. The gearbox will be used complete apart from removal of the handbrake drum. Options I had been looking at for remote mounting were:
- Close coupled prop shaft, approx 300mm flange to flange. These have a slip joint and would enable some non-axial displacement between the gearbox and TC centrelines.
- Rubber donut style adaptor similar to what Mudmouse did a year or two ago. This only needs approx 150mm spacing. Some shaft fabrication & welding would be required.
Thinking about it today, why couldn't I just use a single uni joint with yoke flanges to suit the flanges off the gearbox output and TC input? I only need to deal with small flex between the gearbox and TC. Any axial movement would be taken up in the rubber engine, gearbox & TC mounts? Both gearbox output and TC input shafts are supported by bearings for both axial and lateral forces (I plan to use a Rakeway TC input shaft). This only requires <100mm length.
Length is important as I need to mount the engine as far back as possible to not compromise cabin space but still retain decent rear prop shaft length. I plan to use a front prop shaft to the rear (so about 650mm length).
I would mount the TC by 2 points only, on each side, so that it would be free to pivot fore and aft at the uni if required. The torque loads are axial anyway so I can't see why it would want to pivot fore & aft, apart from non-axial loads generated by the drive prop shafts to the axles?
Thoughts?
Chris
2014 D4 TDV6
1954 86"
1963 2A Forward Control (getting the full treatment, Isuzu 4JH1, MYY5T, LT230, Toyota Axles, extended cab ++)
1980 Stage 1 v8 (gone)
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