No, no jigs. Just very careful to get the A arms, glued to the frame at the same angle, left vs. right. I use superglue. Actually thought it went together much more easily then others - The R/M series of 37 Ford Street Rods with the IFS.....I HATE those ! A arm mounting points are too fragile ! My favorite is the R/M '41 Willys Street rod front suspension, with the upper A arms cast integral with the frame...'Z'