3 spd under drive

Joined
Jul 5, 2003
Messages
1,995
Location
Central, Utah
Will a 3spd tranny hold up behind a 4.3?

Here's what I'm thinkin'... :idea: (inspired by a thread on PBB)

Budget buggy, 4.3 TBI, 3 spd tranny, SM465, NP 205...

The 465 will perform the regular shifting duties. The 3pd will be used like a range box or underdrive in front of the 465.

Looking for pros and cons and don't want to overlook anything.

What do you think?
 
Joined
Apr 24, 2003
Messages
2,212
i've read abit about dual trannies, and i was told that the front tranny (closest to the engine) should recieve shifting duties, as the inertia of the first tranny spinning may make shifting the rear one difficult
 
Joined
Jun 17, 2002
Messages
416
Yes, the SM465 is hard enough to shift by itself. Put a large rotating mass in front of it and the synchro gears would never be able to slow the input shaft down enough to shift. And as a doubler, the SM465 would truly suck :rolleyes:
 

woody

unhelpful spotter
Staff member
Admin
 
 
 
Joined
Jan 15, 2002
Messages
10,556
Location
Toquerville UT
1> that's a LOTTA weight in the drivetrain...
2> the Toy 3-speed isn't exactly famous for strength....start binding things up when in stupid low, and you'll be practicing your tranny replacements too

and, add enough custom adapters together, plus all the shaft machining costs, and you'll likely price yourself pretty high...
 
Joined
Apr 24, 2003
Messages
2,212
i love the idea of reverse reverse low range, super low forward gear

or reverse one tranny, then you got 4 reverse gears :D
 

Mace

rock scientist..
Staff member
s-Moderator
 
 
 
Joined
Feb 17, 2002
Messages
21,435
Location
Las Vegas
The possibilities are endless ;)


I say add a marlin crawler box to it too ;)
 

Poser

Oh...Durka Durka Durka.
s-Moderator
Supporting Vendor
 
 
Joined
Oct 1, 2003
Messages
20,186
Location
MN
Mace said:
The possibilities are endless ;)


I say add a marlin crawler box to it too ;)


Why stop there?


Get one of those 3 speed tcases based off the Dana 300 with an OTT adapter to the toybox......


what was the name of that unit again.... 1:1, 3:1, 5:1....



insane gearing....
 

Mace

rock scientist..
Staff member
s-Moderator
 
 
 
Joined
Feb 17, 2002
Messages
21,435
Location
Las Vegas
Staun I believe was the name :)


I do want one of those triple tcases for my cruiser :smokin:
 
Top Bottom