A gas turbine engine turbine section comprising: an inner diameter structure; a turbine exhaust case surrounding the inner diameter structure and having an outer ring and an inner ring in concentric and radially spaced relationship and a plurality of circumferentially spaced hollow struts interconnecting and supporting said inner ring and said outer ring to each other; an outer casing surrounding said outer ring; and a plurality of tie rod assemblies (120; 300; 400) interconnecting said inner diameter structure and said outer casing, each of said tie rod assemblies (120; 300; 400) comprising: a tie rod having: an inner diameter end; an outer diameter end; and an eyelet of an outer diameter spherical bearing formed at the outer diameter end; at least a first clevis (172; 320; 420) carrying a spherical ball between arms of said clevis (172; 320; 420), said spherical ball captured by the outer diameter spherical bearing eyelet, a shank (193; 322; 422A, 422B) of said clevis (172; 320; 420) extending to an outer diameter end of said clevis (172; 320; 420); and a tensioning bolt mated to a threaded opening formed in said outer diameter end of said clevis (172; 320; 420) whereby tightening said bolt applies a tension to said tie rod relative to the outer casing, characterised in that: a radial span (L 2) between a center of the outer diameter spherical bearing and an inner diameter surface of the outer casing is at least 50% greater than a radial span (L 3) between an outer diameter surface of the outer ring and the center of the spherical bearing. an inner diameter structure; a turbine exhaust case surrounding the inner diameter structure and having an outer ring and an inner ring in concentric and radially spaced relationship and a plurality of circumferentially spaced hollow struts interconnecting and supporting said inner ring and said outer ring to each other; an outer casing surrounding said outer ring; and a plurality of tie rod assemblies (120; 300; 400) interconnecting said inner diameter structure and said outer casing, each of said tie rod assemblies (120; 300; 400) comprising: a tie rod having: an inner diameter end; an outer diameter end; and an eyelet of an outer diameter spherical bearing formed at the outer diameter end; at least a first clevis (172; 320; 420) carrying a spherical ball between arms of said clevis (172; 320; 420), said spherical ball captured by the outer diameter spherical bearing eyelet, a shank (193; 322; 422A, 422B) of said clevis (172; 320; 420) extending to an outer diameter end of said clevis (172; 320; 420); and a tensioning bolt mated to a threaded opening formed in said outer diameter end of said clevis (172; 320; 420) whereby tightening said bolt applies a tension to said tie rod relative to the outer casing, a tie rod having: an inner diameter end; an outer diameter end; and an eyelet of an outer diameter spherical bearing formed at the outer diameter end; an inner diameter end; an outer diameter end; and an eyelet of an outer diameter spherical bearing formed at the outer diameter end; at least a first clevis (172; 320; 420) carrying a spherical ball between arms of said clevis (172; 320; 420), said spherical ball captured by the outer diameter spherical bearing eyelet, a shank (193; 322; 422A, 422B) of said clevis (172; 320; 420) extending to an outer diameter end of said clevis (172; 320; 420); and a tensioning bolt mated to a threaded opening formed in said outer diameter end of said clevis (172; 320; 420) whereby tightening said bolt applies a tension to said tie rod relative to the outer casing, characterised in that: a radial span (L 2) between a center of the outer diameter spherical bearing and an inner diameter surface of the outer casing is at least 50% greater than a radial span (L 3) between an outer diameter surface of the outer ring and the center of the spherical bearing.