Oliver HG tranny frame bolts (long)

[oldfarmer]

I bought this hg last Dec. The motor was set up but we got that probem solved. Now I have a tad of a problem with the frame to the tranny bolts.The spacing blocks were bad(one was a toggled affair) then I started checking other stuff. All off the collets and nuts except one that hold the tranny to the main frame were gone. There is about 1 inch of hole in the tranny where the the stud should go.Apparently the the spacers went and no one checked the bolts. Could I tap and thread that and use locite on it or should I try to get what is left of the old studs out?.This is a 1949 model and amazingly all the other bolts I removed that I thought would twist off came off fairly easy. I am leaning towards drilling and using easy outs but I don' know how far in the casing the studs go.Has anyone else had this problem?  
Thanks for any help.  Dave

[buj]

When I did my HG-68, it had studs in the front by the input shaft & large bolts (3/4"?) with collars hooking the rails to the sides of the tranny. It depends on what kind of fix you're looking for. Several of mine were broken, so I removed them all and replaced them with grade 8's & it's the last time I'll need to work on them. Be sure you use the coarse/fine studs because coarse/coarse can't be torqued correctly. Also be sure you have the additional u-bolts/hardwood blocks to keep things secure.