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What did the trans-am and NASCAR guys run bak in the day?



Herein lies some of the problem; These two venues were considered contact sports, therefore increasingly heavy duty parts became required to allow the cars to finish races. Since these were the most practical handling applications of the era, many assume duplicating their configurations are the best means of skinning the cat these days and similarly install heavy duty parts where they may not necessarily be required. Nascar guys also use 3/4 and 1 ton full floater truck rear ends with oil coolers. That's probably overkill for a street app as well.

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It may have been in one of the above posts, but here goes: Are the C body tie rod ends the same size as the A, B and E cars? If not, I guess to use the 11/16" units, you'd need 2 inners, 2 outers along with the sleeves? Is the taper in the center link and lower ball joints are the same degree as the other cars?



Same size in what regard? The threaded shank on small units standard tie rods is 9/16, the large C body units are 11/16. So yes, to covnert you need two inners, two outers, and two adjusting sleeves. The taper fit is identical betwen the two sizes.