Dont know which way spacer goes on rear axle on 04 ultra glide clasic

Support the motorcycle with the front wheel off the ground.
Remove the caliper mounting bolts and remove the caliper
Place a plastic or wooden spacer between the brake pads in place of the disc. Then, if the brake lever is inadvertently applied, the pistons will not be forced out of the caliper.If the pistons are forced out, disassemble the caliper to reseat the pistons.
Insert a drift or screwdriver through the front axle hole on the right side to prevent it from rotating.
Loosen and remove only the left side axle nut.
On the right side, loosen the fork slider axle clamp nuts
Prior to removing the front axle, note the location of
the right side spacer and left side spacer. The spacers must
be reinstalled on the correct sides during installation.
Withdraw the front axle from the fork sliders and front wheel.

With the larger outside diameter on the outboard side hold the external spacer between the belt sprocket and the rear swingarm and then slide the axle through left side of the swingarm, the external spacer and the belt sprocket into wheel hub and then when the axle emerges from the hub on the brake disc side of the wheel, push the axle through the short external spacer, the brake caliper bracket and the right side of the rear swingarm.

To remove a 2008 Softail rear wheel FIRST block motorcycle underneath the frame so that theweight of the motorcycle is off of the rear wheel, remove saddlebags if equipped, remove the belt guard and the debris deflector from the rear fork, inspect the wheel bearing end play and service the bearings if and as necessary, label the wheel spacers for left or right locationand orientation i.e. fork side or wheel side, remove the rear brake caliper from the caliper mount and support it using an elastic cord or such,For the FXCW/C modelsthe nut retainer will remain in the axle nut and does not need to be removed and if it is removed it must be replaced. For all but FXCW/C remove e-clip, remove the rear axle nut, and for FXCW/C remove the rear axle nut, loosen both axle adjuster screws an equal number of turns to remove tension from drive belt, with a suitable drift or other tool tap the axle towards the right side and remove it, remove the spacers and the caliper mounting bracket, move the wheel forward and slip the belt off of the sprocket, raise the motorcycle to allow enough clearance for removal of the rear wheel and pull the wheel with the belt sprocket from the rear fork.

To install a 2008 Softail rear wheel FIRST apply a light coat of wheel bearing grease to the axle, to the bearing bores and to the bore of the inner sleeve, roll the wheel into place in the rear fork and slide the drive belt over the drive sprocket, position the left bearing spacer between the wheel and the fork, from the right side carefully insert the axle (with its washer for FXCW/C models) through the right rear fork, the short spacer, the rear caliper mounting bracket, the long spacer and into the bearing bore, continue sliding the axle through the wheel hub sleeve, the left side spacer and the left rear of the fork, install the washer, the axle nut, and the retainer, verify correct axle alignment and the check belt deflection, check the wheel bearing end play after tightening the axle nut to the specified torque because excessive end play can adversely affect stability and handling and insufficient end play can cause bearing seizure, tighten the axle nut to 95-105 ft-lbs (128.8-142.5 Nm), install the belt guard and the debris deflector, install the brake caliper and pads, install the saddlebags, if equipped, pump the brake pedal to move the pistons out until they contact both brake pads, verify the piston location against pads, verify the position of the brake pads against the brake disc, rotate the wheel to check for any interference(s) or misalignment(s) and test the brakes for proper operation.

Front axle nut torque 70-75ft lbs, rear axle cone nut first torque 15-20ft lbs, second torque 95-105 ft lbs, front disc torque 16-24 ft lbs, rear disc torque 30-45ft lbs.

There are two sleeves that go into the wheel bearing seals for the lip ot the seal to ride on. They are both exactly the same. They go inside the seals. Then there is one wheel spacer that goes on the belt side of the wheel. http://www.bikebandit.com/1999-harley-davidson-flhtc/o/m1150#sch147360

Good Luck
Steve

If you are talking about the spacer that goes over the axle inside the hub of the wheel, there should be some shims in there as well. These shims set the endplay on the bearings. I don't have a manual for the 2000 FLHTCUI but seems like it's something like 0.004-0.008". Also, the shims may have to be on the opposite side of the rear belt pulley. You really need a manual or someone that knows what the specs are precisely. Maybe someone else on this forum will come in with the correct information. Good Luck!

50 foot pounds of torque