Rance,
The 68 El Camino more than likely has a Saganaw trans (7 bolt side cover) this is a full syncro 3 speed and work well in the older trucks. You will need to modify/cut your drive shaft to accept the later fine spline input yoke and will need either an after market floor shift assy or find the column shift parts for your truck. I hope this helps, Fred


1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine