Vehicle is a Chevrolet C-1416 Veraneio,1/2 ton, made here in Brazil, very similar to the American 1964 C-14. 261 engine, 4 speed. Differential is (to my knowledge)a Dana -ex Rockwell-Braseixos here. 3.9 to 1 ratio. May be seen at http//djjaragua.vilabol.uol.com.br.veraneio.htm . Was subject of my first post (10 may 2008) about valve adjustment, which deserved the first reply from you, tclederman, and others equally kind answers from hotshoe36, truckernix, atomarc, 54TOW and TxLaTx.
Many thanks, extensive to BIG CHEVY 3600.
