View Single Post
  #1  
Old 02-10-2026, 04:31 PM
66 Le Mans Cruiser 66 Le Mans Cruiser is offline
Junior Member
 
Join Date: Feb 2026
Location: Henderson, NV
Posts: 20
Default 3 speed to 4 speed swap

Hello. I recently purchased a 1966 Le Mans convertible. Pretty much stock. Has 3 speed and 326. Previous owner put a 2 barrel holley, new air cleaner, sway bar, and dual exhaust.

I am new to the hobby, not very experienced with working on cars but am fairly handy and willing to learn or pay for what I don’t want to learn/do(I am 51 so more strenuous stuff I will pay for)

I love the car. Engine runs great. I don’t really enjoy how sluggish the car is getting going. I have had a few manual cars in the past and this car feels like a dog getting going. First to second and second to third are fine. A few people at cars n coffee as well as reading some posts on here recommended going to a M20 4 speed to get more response from 1st gear.

So is it a direct swap or are there modifications that need to be done(like driveline length, etc)

Is this worth the time/cost? Any other suggestions?

I want the car to be a cruiser. I drive it 5-6 times a week and have no interest in lighting up the tires.

Sorry for the long post and if you made it this far thanks for reading my rambling!
Attached Thumbnails
Click image for larger version

Name:	IMG_8895.jpg
Views:	43
Size:	122.4 KB
ID:	664846  

The Following User Says Thank You to 66 Le Mans Cruiser For This Useful Post: