[mash]

Have Hijacked this old thread, i have a 68 lemans 350 2b (now 4b) with 2.56 gears oas original, now for the ignorant questions, BOP? body of pontiac? dont know what BOP means. Know what do i need to purchase to put in 3.08 or 3.23 gears. dont care if i have to use chev and different unijoint and yoke just need to know exactly which parts i need ie do i need a new axle housing etc. Thanks

[MikeB'70Tempest]

Originally Posted by mash

Have Hijacked this old thread, i have a 68 lemans 350 2b (now 4b) with 2.56 gears oas original, now for the ignorant questions, BOP? body of pontiac? dont know what BOP means. Know what do i need to purchase to put in 3.08 or 3.23 gears. dont care if i have to use chev and different unijoint and yoke just need to know exactly which parts i need ie do i need a new axle housing etc. Thanks

Buick, Olds, Pontiac. It is different than Chevrolet.

Mike

[shineybike]

Mash. I ended up buying a used 3 series GM posi carrier with 3.23 gears from someone on this forum and had it installed in my stock housing. Had new axle seals installed at the same time. I'm happy with the change, better acceleration but still tolerable on the highway. If I remember right I'm running somewhere between 2700 and 3000 rpms at highway speeds, but I don't do much driving on the highway anyway.