It’s quite uncommon, the vast majority of GTO’s were built with the standard issue gears for the engine and trans they had. In 69 manual trans cars (350 or 366 horse) came with 3.55 gears (3.23 with AC) and automatic cars had 3.36 or 3.55.
Of the cars ordered with stiffer gearing almost all are 4 speed cars. Very few automatic car were ordered with optional gears.
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My Break Away Squad
1969 Fbird (base OHC, 350, 400HO & Sprint Cvt’s - 400HO & TA ht’s)
1969 Custom S 2dr ht
1969 LeMans (2dr & 4dr ht & Cvt)
1969 LeMans Safari wagon
1969 GTO (2 Cvt, 2 ht & Judge ht)
1969 Cat (3 Cvt’s & a 2dr ht)
1969 Ventura wagon 2 seat
1969 Exec 4dr post
1969 2 Bonnie Cvt's & 2 wagons
1969 Bonnie Brougham (4dr ht & Cvt)
1969 Grand Prix 2 SJ’s
1969 2+2 2dr ht (Canadian)
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