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| | | Forums66 Topics128,074 Posts1,055,910 Members48,429 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Dec 2009 Posts: 81 Shop Shark | | Shop Shark Joined: Dec 2009 Posts: 81 | 1958 TF 1/2 ton - I am re-installing three speed shift linkage but the replacement column I have used came from a four speed, therefore I need to drill and tap two holes on the top of the column for the shifter linkage bracket. Could anyone please measure and tell me how far from the wheel-end of the column to drill? Would be very helpful to know if your measurement includes the steering wheel bearing or not (preferably excluding bearing)!
There's enough play between the shift rods and the shift box mounting position that I can't with confidence just approximate, and the only measurement I see in either the factory assembly manual or the shop manual is from the wheel to the shift lever, which doesn't help a bunch as there is some plus/minus with the repo column bearing (and it's tough to measure without firmly affixing the lever!).
Thank you very much!
gobolt
| | | | | Joined: Apr 2015 Posts: 336 Shop Shark | | Shop Shark Joined: Apr 2015 Posts: 336 | Edited
Last edited by Cablesmill; 06/22/2017 6:33 AM. Reason: Took my dog out of the hunt
1959 3100 Apache Fleetside
| | | | | Joined: Dec 2009 Posts: 81 Shop Shark | | Shop Shark Joined: Dec 2009 Posts: 81 | Thanks very much for the response. The shift box mounts with a bracket around the column, there are no holes and it can slide up and down as needed, not at a fixed point.
gobolt
| | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | from the factory the box is properly positioned by a hole in the mast jacket, without that [and box "sliding up and down"] you're looking for a ton of grief with the linkage jamming, the linkage is enough problem as designed - you really need the correct 3 speed column - also, the upper mount holes need to be precisely placed around the tube
Bill
| | | | | Joined: Apr 2005 Posts: 2,097 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,097 | I recently did a 4 speed to 3 speed OD conversion on a 59 3200. The column was drilled and threaded and had all the holes in the correct location. We obtained the shift linkage and bolted it right on. I could understand that a column on a larger truck may not be set up for a column shifter but it would seem that the entire steering box would be larger as well. The tube is not removable from the steering box so as Bill recommends - you really need the correct 3 speed column. 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
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