In a message dated 11/27/2006 6:56:26 A.M. Eastern Standard Time, 
AMC74HORNET@xxxxxxxxx writes:
I 
  believe 75 was the transition year changing from Motorola's to
Delco's. 
  Some cars still had the Motorola and some had the new Delco. I
can't say I 
  have ever looked under the hood of a Pacer but one time many
years ago. The 
  problem with putting a Delco in place of the Motorola on
a 6 cyl with power 
  steering was steering box clearance in pre 75
Hornet's and Gremlin's. 
  Pacers have rack & pinion steering. On the post
75 Hornet's and 
  Gremlin's with a Delco the position of the accessories
was changed to put 
  the alternator on the pass side and the power
steering pump near the 
  steering box. 
"Doc"
 
Thanks Doc. It is indeed a Delco under the Pacer hood. Good 
deal, I guess!