tierod end to steering knuckle. can anyone help me out?

 

Don't think there is one, as tight as you can, than pin it

 

My '94 GM shop manual says tighten to 47 newton-meters/35 ft.-lbs. Then up to 1/6th additional turn, or 70 newton-meters/52 ft.-lbs. maximum, to align cotterpin slot. Do not back off nut for cotter pin insertion. Hope that helps.

 

The late Carroll Smith in his book "Nuts,Botls,Fasteners and Plumbing Handbook" "During tightening, any threaded fastener is subjected to two quite different stresses. First, the tension stress set up by the actual streching (or strain) of the bolt as it is tightened. Second, the shear stress that is caused by friction between the male and female threads and between the undersurface of the bolt head and the work face. The tension stress, produced by the strain or stretching of the bolt as it is tightened, is what we are looking for. This stress will remain in the bolt after the wrenches are removed and, as long as the total level of stress has remained within the elastic limits of the bolt, this residual stress will exert a strong clamping force on the assembly forever"
"The truth of the matter is that every critical bolt and nut that is loaded in tension and subjected to vibration or reversals of load should be tightened to a pre determined level of stress."
Carroll Smith has written several books dealing with race car building. All his books are top notch and are an easy read and should be in every serious mechanics pile of books.