X2 on markz528's comments.
Only one add to it: if the customer is going to stay the course and stick with a three speed, get a 1970-up A230. 1970 is the first year of being all synchro. Pre-1970 does not have a synchro on first gear.
What you should get is a 1970 A230 from a 383/4 Cuda or Road Runner. These are a close ratio version. Not easy to find, but not in demand either.
Ed
EastCoast Land Yacht Assoc.
1967 Newport Conv: 440/4 speed
1969 GTX: 440/4 speed, TX9/TX9, A34, N96
1970 Super Bee: 383/4 speed, B5/B7
1970 Coronet RT: 440/4 speed, A34, N96
1970 Coronet RT: 440/auto, A36, N96
1970 Road Runner convertible: 383/4 speed TX9/D6XW
1970 GTX: 440+6/727, A32, N96
2001 Dodge 2500 HO CTD, 6 speed, 4x4 quad cab long bed
"The early bird may get the worm, but the 2nd mouse gets the cheese".
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