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Install Tips & Issues

  • Atlas Transfer Cases:
    • On Atlas transfer case, silicone the upper screws to seal them properly.
    • You can clock the Atlas at different angles, depending on the ground clearance you desire. I put mine at the fartthest position up, and I have about 1/4" of clearance between the Atlas and the framerail. This seems to be sufficient if you use polyurethane transmission mounts to keep the assembly from rotating during high torque situations.
    • If you're running leaf springs, you will need an anti-wrap device for your rear axle to countereffect the torque multiplication of these transfer cases. These pictures illustrate my brand new Tom Woods drivelines after my first wheeling trip with the 700R4/Atlas and nothing to control the axle wrap. The axle wrapped so far that the yoke bound up on itself and shattered the entire driveline.
  • TV Cable Bracket:
    • You will need to purchase TCI's TV cable bracket (TCI-376700) or get one from the boneyard. To run it with a Quadrajet, you will need to make a cut in the bracket with a hacksaw (or equivalent) to allow it to clear the intake manifold. This picture illustrates the cut that will need to be made.
  • Headers:
    • Doug Thorley long-tube headers will not work in an early Bronco with the Toyota Landcruiser crossmember. This picture illustrates how the collector dumps directly into the crossmember tubing. I'm not sure if other long tube headers will work. The second picture shows my setup now with single exhaust.
  • Transmission Coolers:
    • Use the largest coolers that you can find and fit into your vehicle - heat kills automatic transmissions, and it's pretty hard to cool them too much. I built a frame underneath my radiator to hold the transmission cooler and fan. I'll probably move it this winter because it gets too close to the rocks, but you get the general idea.
  • Torque Converters:
    • Make sure to get a decent torque converter if you can afford it. These pictures compare the Art-Carr unit (in black with the flame hardened, 1 piece hub) to the stock replacement unit (in silver). Notice that the stock replacement has a large circular weld around the hub, and the Art-Carr unit is machined out of 1 piece of steel.
  • Lokar Shifters:
    • The Lokar shifter requires some minor modifications to fit correctly on the transmission. The adaptor housing has to be clearanced, and the lokar bracket has to be ground down a little.
    • These pictures show the brackets correctly installed after clearancing.
    • To get the transfer case and transmission shift linkage to play nicely together, bend the lokar shift lever out about 1/8", shorten shift the tower on the Atlas, and cut the links to approximately 2 3/4". The farther forward you can get the Lokar on the transmission, the better the geometry will be to get an accurate shift. I had to notch the crossmember in my floorboard (center hump) about 1".
  • Adaptor Housing
    • Both sides of the adaptor housing should be siliconed before installation to keep foreign contaminants out of the tailshaft/input shaft housing.
  • Crossmember:
    • I used the Advance Adaptors Toyota Landcruiser Turbo350/400 Crossmember (#716004) instead of fabricating a brand new unit. It worked perfectly, other than some minor trimming. You will need to shorten the crossmember on each end by a few inches.
 


700R4 Advantages / History / Parts List / Pricing

Tips & Issues / Links & Resources / FAQ


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