Thanks for clearing the air Big. I'll add your reply to my
reference folder on these. Just out of curiosity, where did you
get your information from and it sounds like you have access to
a machine shop?
I just opened the door on the New Venture transmissions
yesterday and would like to know a little more about them. Been
gathering up as many articles as I have time for but it's like
putting a jigsaw puzzle together with all the variation.
The electronic speedo thing seems to be a problem with many of
the later transmissions that are available. That's just another
hurtle to be dealt with. Spline and drive shaft make up isn't a
problem as they can be made up any way you want them for not to
much money.
The input shaft on the Dodge 4500 is over an inch longer than
the SM420, is that the case with the 3500? Still not clear, but
the 3500 made for the GM and Dodge did have the bell housing
cast into the case is that correct?? I think I read where the
ones used in the Jeeps were bolted to the inline 6 bell housing.
I’ll bet they would be a little hard to find.
The shift tower setback was the first thing that I noticed
looking at the pix of the NV4500, don't know what the 3500
would be, but it doesn't look anywhere near as bad as with
the T-5's. I’ve seen some of them that have to have a goose
neck bent to get it out from under the seat almost. Even with
the seat full forward in my '50, the SM420 shifter tower is
at 11" so that wouldn’t be a problem with a NV4500.
Yep, turning a new pilot bushing and sizing the bearing retainer
is no problem, even if you had to make a whole new retainer.
The stumbling block I see is the extra length of the clutch
shaft on the Dodge’s. With that you would have to space it out
and I doubt if the mounting hole geometry is the same as the GM
design, so you’re talking about a complete adaptor plate to
space it out. AA didn’t seem to have anything for a Stovebolt
and their adaptors are pretty pricey. Thank the lordy I’ve got
a mill and lathe at my disposal and that I know how to use them.
Big difference between 7.03:1 and 5.61:1 when you're rock
crawlin’, even Novak says the guys shy away from them because
of that.
Yep, I think I posted earlier from the Novak site,
that the NV4500 weighed in at 195lb and SM420 at
135lb. Haven’t seen any specs on the NV3500, if you
find anything for that, appreciate you posting it here.
Denny Graham
Sandwich, IL
Last edited by Denny Graham; 08/01/2014 3:08 PM.
