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Old 03-08-2014, 04:29 PM   #6
Keith Seymore
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Join Date: May 2009
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Re: 3 on the tree in 1987

Quote:
Originally Posted by Palf70Step View Post
The 4.3 still had a carb in 87 from what I remember.
Negative. First year for TBI in the squarebody was '87.

Edit: Just noticed from the chart below that the three on the tree was available only with the 4.3 V6.

"MM3" is the "merchandised RPO" for 3 speed manual provisions. The other specific powertrain content would drive either the non merchandised RPO M62 (2.85 low gear) or M64 (3.50 low gear) both of which were Saginaw passenger car style transmissions.

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Last edited by Keith Seymore; 03-08-2014 at 04:36 PM.
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