Reply to "What did I just buy?"

LI-Rick

If you want to launch a type 1 trans, you need either a later 3.78 main shaft, or better yet a Weddle main shaft. Along with this a 4 spider differential.

Freeway flyer is just a made up name for a transmission that has a taller 4th gear. Transform, long out of business, made up that name back in the 1980’s to up sell people a .82 4th gear.

Keep in mind, the lower the ring and pinion number, for ex, 3.88, the stronger the gear, for a given type of tooth design. Type 1 r&p have been available in 3.44, 3.88, 4.12, 4.37, and 4.86 over the years. 3.44 and 4.86 are aftermarket only, whereas the others have been available in both factory and aftermarket.

9/29/2111:19 AM

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