Tranny set-up (2 Viewers)

[ryeguy]

A friend of mine just gave me(well for a case of beer) a 283 Chev. motor and I plan to re-build it and put it in my cruiser. I was wondering if anyone can tell me if my stock tranny will hold up to it. I have a '74 Fj40 with the 3-speed.

Call me crazy but I kinda like the 3-speed tranny :dunno:.


rye

 

[megolfer]

I emailed you, check your email

 

[Pin_Head]

If you like the 3sp, you will love the sm420.

 

[ryeguy]

Pin_head

what about the sm420?

 

[theo]

what about the sm420?

Granny gear (7.05:1)! Plus, you can pick them up cheap, they last a long time, and parts are pretty easy to find. And they're tough enough for the punishment. The sm465 is more common but has a slightly higher 1st gear ratio. Either one will work fine.

 

[Pin_Head]

The sm420 (and sm465) are just like having a floor shift 3sp that has an extra low granny gear. Around town, you just use 2-4 and when you need it, you drop it into the extra low 7.05:1 first. They bolt right up to the chevy small block and all you need is an T'case adpator plate and a few odds and ends. See the technical links section for details.

 

[ryeguy]

Can these trannys be sourced from something? If so what kind of donor vehicle should I look for?

That super low first gear sounds GREAT!

 

[megolfer]

1947-1967 in 1/2 to 2.5 ton chevy trucks. Look at the tech links on this site and it will tell you more

 

[ryeguy]

Thank you

 

[Mavric1298]

I'll tell ya from first hand experience, they kick ass. They are pretty loud trannys, but hell the 7.05 kicks ass! and the final gear is 1 to 1 same as stock 4 speed cruiser!

 

[megolfer]

Im going with the sm465. Mine is a daily driver so I want to have the full syncros and its not that much of a difference in gears. It is a little more to put in but I think its worth it. They are also one of the strongest 4 speeds around.