Rear - 3 Inch Wide Springs - High Arch
T50/55 with 3" wide springs
1967-1969
T60/65 with 3" wide springs except 1965-1966 with 4-cycle diesel engine; except 1970-72
1963-1978
T65
1973-1978
T70/75 with 2-cycle diesel engine
1967-1969
T70/75 except with 432 or 478 CID V6 gasoline engine
1973-1974
T80/85 except with 4-cycle diesel engine
1965-1966
W60 with 3" wide springs and W70
1979-1980
True radius, rubber (RB-75) bushing eye leaf springs with high (approx. 8") arch.