78 trans am rear end
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Joined: Nov 2002
Posts: 240
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From: Bush, Louisiana, USA
Car: 1986 Pontiac Trans Am
Engine: LG4 305
Transmission: 700R4
78 trans am rear end
Does a 1978 trans am have a 7.5 inch rear end, and does it have a 2-series carrier or 3-series carrier?
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Joined: Jul 2000
Posts: 6,529
Likes: 94
From: Aridzona
Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
No, it has an 8.5"
On an 8.5" the case break is different than a 7.5" diff...
2.73 and numerically higher (3.73 etc.) use the same carrier.
Below 2.73 uses a different carrier.
On an 8.5" the case break is different than a 7.5" diff...
2.73 and numerically higher (3.73 etc.) use the same carrier.
Below 2.73 uses a different carrier.
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