65 3 on the tree with over drive ?'s

[jcramsey]

Originally Posted by frankslagoon

Yes its a R10 the R11s r hard to find they have 4 gear pinion gear ass. instead of 3. You have drill a hole in the 4 speed case for the reverse lock out rod to come thru. ya can,t shift into reverse while in overdrive or you'll kill the engine. the o/d trannys have a bump on the reverse shifter inside the tranny that pushes a rod back into the o/d and shifts out of o/d when ya shift into reverse. But I'm thinkin the cases might be the same and ya could actually use the 3 speed case. maybe,

Thanks frank. I've got a 3 speed OD on my bench now. Any tips for marking and drilling the hole in the 4 speed case? Or is it as simple as just bolting them together and slide a tight fitting punch in the hole?