Seems there are 3 or 4 different drag links. Was there a cutoff by year for a particular drag link? What is the difference in length? Have a 1920 frame for a speedster project. Thanks..
Hope this helps.
STEERING CONNECTING ROD
Factory Number T-289
7-29-12 Riveted rod adopted. Brazing pin holes at various angles.
11-4-12 Pin holes now drilled in the same direction.
1-9-14 Both ends of brazing pins riveted over.
9-19-14 Length of rod changed from 30-11/16 to 30-11/1630-3/4. A month later it was changed again to 31.06231.125
7-14-16 Ford design with forged end adopted. Earlier type continued in use (supplied by outside firms).
5-8-17 Ford design now used exclusively.
10-2-17 Length changed to 30.93831.062.
5-19-19 Length changed to 30.31230.438
Factory Number T-289-B
At the introduction of and for the 1926 models, the length was 31.12531.250.
10-7-25 Length changed to 30.81230.875.
Recommend you also look at Royce's posting at: http://www.mtfca.com/discus/messages/257047/300409.html some of the information is repeated but the photos and additional information make it very clear -- if you use all the parts from the same year (year range often times) and set it up stock you will not have problems. If you mix and match parts -- you need to be sure it will work correctly and not go over center etc.
Example of successfully mixing and matching parts -- see the posting at: http://www.mtfca.com/discus/messages/29/25924.html Look at John Sizemore's speedster -- the tie rod is in Front of the axle (don't hit a post...).
Not requested -- but you may find it helpful for your speedster project:
Low speed pedal vs steering column - Speedster steering column lowering
Info on spindles:
Also check out the technical information on the North West Vintage Speedster site at: http://www.nwvs.org/
Good luck with your build and be sure it is safe. It can be more exciting if it is not safe -- but the excitement is too often too costly.
1926 Model T Fordor ,Steering goes over centre
http://www.mtfca.com/discus/messages/506218/572556.html -- especially the caution from a roll over shared by Jon Crane in the same posting.
Hap l9l5 cut off