Need a focus tube with integrated rack for a saxon

If you mean your cross hairs wont focus the most likely cause is the cover you are turning is slipping and not actually adjusting the lens. Depending on the model, there are usually a couple small screws that can be tightened to correct this.
If you mean what you're trying to look at (objective) wont focus, then likely the focus tube is no longer making contact with the focus pinion. Look in the objective of your transit, and you should see a tube inside the frame. Turn the focus knob slowly and see if it moves the tube closer and further away. If not the rack and pinion are no longer meshed up. If it does then you have a lens out of place. Disassembly is easy, but reassembly and realigning the lenses is tricky, i would not recommend. A repair shop should be able to take care of this, and make sure it's in proper calibration for not to high a cost.

Put the eyepiece with the largest number written on it into the focuser. DO NOT use the 2x or 3x barlow if you have one. Go outside during the day time and practice focusing on a distant object like the top of a telephone pole or a distant building. Turn the focuser knob until the image comes to focus.

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Hello
Your TVs focus voltage has some trouble. You gets an out of focus piture now. There may be two reasons for this fault. The first one is, the focus pack trouble. The second one is picture tube base socket trouble. Both are repairable.
Focus pack is integrated with Line Output Transformer [LOT], and picture tube base socket is soldered directly to picture tube base card. You just open the TV and check whether there is any "Shhhh" sound comes from the neck side of the picture tube while tv is working. If it is so, you will get a smell of Ozone gas also. If it is so, switch off the set and unplug it from mains socket, pull out picture tube base card from the picture tube neck. Be gentle, and not make any shakes while pulling it out. The neck part of the picture tube is very thin relative to its other portions of the picture tube, and have a chance to break. So be carefull when you pull it out. You can see the base socket soldered directly to it. There will be two wires also, for some sets only one, attached to it. Normally the red wire going to a slot in the socket is focus wire, through which focus voltage reaches to the relative pin of the picture tube. Just detach the wire out from the socket, desolder it out and go for a similar type, and pin confuguration. Replacing it will solve your problem. After replacing the picture tube socket, a slight focus adjustment may be needed. Sometimes may not. The focus voltage can be adjusted. Its adjustment control is located on the above said [LOT]. There will be two adjustment controls, marked Focus and Screen. Out of which the upper one is for focus adjustment, and the lower one is for screen adjustment as its markings states. You just adjust the focus control very little, while watching the picture on your tv screen. Take menu display for reference, rather than moving pictures for focus adjustment, so that you will get a stationary image for reference.
The second stated trouble is related to the screen-focus pack integrated with the [LOT] itself. If it has got damaged, there is no other way than replacing the [LOT]. If so desolder it out from the circuit board, after detaching the anode cap from the top of the picture tube,and focus and screen wires. Before detaching the anode cap, care must be taken, as there may be some extra high tension voltage charge on the final anode of the picture tube, which is dangerous. You must discharge it before unpluging it, otherwise you may get electric shock from it, even after the Tv is switched off and unpluged from the wall socket. The charge may retain there for hours. So be careful.
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Hello

Your TV may have focus problem. If the focus pack of the TV [which is usually integrated with its Line Output Transformer (LOT)], may faulty. It is a rare case. In most similar cases, the CRT socket, connected on the base board of the TV may get damaged, due to this proper focus voltage doesn't reach to the respective pin of the picture tube. You just replace the picture tube base socket with a similar new one. In most cases this will retify the problem.

You can return this to Maede for repairs-- or they might sell you the parts.

Call them here:

http://www.meade.com/support/index.html

You will need to buy another focuser like one of these.

http://www.telescope.com/control/accessories/telescope-focusers/1*25-inch-orion-basic-rack-and-pinion-focuser

http://www.telescope.com/control/accessories/telescope-focusers/2-inch-orion-crayford-style-telescope-focuser

2.0L DOHC Engine

1. Before servicing the vehicle, refer to the Precautions section.
   
2. Remove or disconnect the following:
   
   • Negative battery cable
     
   • Air cleaner outlet tube
     
   • Lower starter motor bolt
     
   • Two starter motor upper bolts
     
3. Slide the starter motor from its mounting until you can gain access to the wiring.
   
   • Integral connector
     
   • Starter motor
     

To install:

1. Install or connect the following:
   
   • Integral connector and tighten the retaining nuts to 61 inch lbs. (7 Nm)
     

Starter motor to its mounting

Two starter motor upper bolts and tighten to 15–20 ft. lbs. (20–27 Nm)

Lower starter motor bolt and tighten to 15–20 ft. lbs. (20–27 Nm)

Air cleaner outlet tube

Negative battery cable

Put the eyepiece with the LARGEST number written on it into to the telescope. DO NOT use the 2x barlow if you have one.

Go outside during the day and practice focusing on a distant object.

Orion UK has a very good reputation so I'm surprised you are having a problem. However, I see they are offering this with a Crayford focuser. Most Crayfords have a lower profile than traditional rack and pinion types and they may have failed to realize this could effect back focus. If the scope is new I'd talk to them. If not, find a 2" long by 2" diameter focuser extension tube.

If it does have a traditional rack and pinion focuser it may be missing the extension tube. Many of this type have a threaded on extension tube which is used for visual work and removed for use with a 35mm camera. The solution's the same.

Yes you can -- several different telescope retailers sell focuser here is one:

http://www.telescope.com/Accessories/Telescope-Focusers/pc/3/51.uts

You must buy the correct size that will fit your tube.