No he didn’t, go back and watch Reagan’s speech at the convention, it offered no endorsement of Ford at all.
There is the video:
http://video.foxnews.com/v/4518663/reagans-1976-republican-convention-speech/?#sp=show-clips
Here is the Transcript:
http://www.nationalcenter.org/ReaganConvention1976.html
Reagan NEVER endorsed Ford at the 76 Convention. His speech was far better than what Cruz offered, but there was no endorsement of Ford anywhere in it.
Anyone telling you otherwise is LYING.
Ronald Reagan's Remarks at the Republican National Convention in Kansas City, Missouri — 8/19/76
For more information on the ongoing works of President Reagan's Foundation, please visit http://www.reaganfoundation.org