Greetings All.
  I have a lathe that has the base of the tailstock worn a bit from sliding on the bed / ways.
The centerline of the tailstock is below the centerline of the headstock and angled downward slightly towards the carriage.

It has the left / right adjustment so the base is two piece.

What is the common procedure to restore the tailstock to the proper alignment.

Thanks,
Russ
 

re-machine the ways and space it to add the difference.

Russ,

John Mac did the saddle of his lathe with a low friction epoxy compound - follow the link here http://www.machsupport.com/forum/index.php/topic,18189.0.html
May be worth further investigation (seems simple enough stuff to make).

Tweakie.

Re-machine and shim ... sort of what I was assuming. Thanks a.t.

Tweakie, that file is too big for here, will pick it up when I get out.
One initial concern with the plastic would be the compression from clamping the tailstock in position. Far more psi than an apron or sliding situation.
Whaddyathink ?
Thanks,
Russ

Russ,

An alternative thought - if your tailstock is adjustable and in two parts then could you fit horizontal shims between the two parts to raise the height ?

Tweakie.

Yes, that is exactly what I was referring to , and what I assumed angel tech was meaning also.
I could invert the lower block on the surface grinder and get it exactly parallel, then shim as you suggest to get the proper height.

Thanks,
Russ

Sorry, senior moment 

Tweakie.

No appologies necessary Tweak. Glad to see we are on the same track.
btw ... do you have an app for the filler material mentioned earlier ?
Sort of anxious to see it in use, looks to have good potential.
I might get the info dwnlded over the weekend.
See Ya,
Russ

What to do with a worn tailstock.
All was machined based on the tailstock center lines.
-2 made //  to 1
-base attached to the tailstaock and 3 made // to 2
-A right angle used to mount and then 5 made // to 4
Then i also added a base and machined it //  in all planes.
The center is true to all surfaces .....used a nice carbide end mill. Notice i milled a flat on the top
of the tailstock so i could mount it to the mill table. I removed the tailstock center holder and used a nice long piece of  ground round
to indicate it in.
Done three of them like this....no grinding.... 

I dont like epoxy because your going to get metal into it and it may mar the lathe bed surfaces.
RICH

Nice job Rich, mine has to go back on my lathe.
The truing at #2 and 3 might remove .01 to .02" total although I might not machine it @ #2, just at #3.
Guess I'll shim up the difference @ #2.
I hate grinding when I can mill instead. I have some new carbide and will go that route first then.
The base has 1 inverted V and a flat so it shouldn't be too bad.
Thanks.