Idon't know of a driveline overdrive unit but adavance adaptors has a
overdrive that goes in front of the transmission.
and click on the "ranger III" button.
'49 Chevy 3800 panel
'52 GMC 640 Firetruck
Deve Krehbiel wrote:
> I just need an overdrive unit that I can use on a 235 with a Granny 4 speed.
> Anyone have any ideas? I have heard of Brownie, but hearing about it and
> actually having a solution are two different things. Friend of mine has a
> nice solution for the 3 speeds, but for my 49 3/4 ton with a 4 on the floor,
> no luck.
> ----- Original Message -----
> From: "J Forbes" <firstname.lastname@example.org>
> To: "Old Trucks List" <email@example.com>
> Sent: Thursday, May 25, 2000 11:28 AM
> Subject: [oletrucks] Overdrive wonderings
> > Dustin--
> > An overdrive, granny gears, and 400hp...you don't ask for much, eh? :)
> > Many years ago, a friend of mine had a 61 Chevy 40 series truck (1.5
> > ton), and he had a 396 in it, with a TH400, and it had a really steep
> > rearend gear...it would top out about 50 mph on the highway. He wound
> > up putting a 2 speed rearend out of a BIG truck in it (22" wheels, I
> > think)...but it still had the same gear ratio problem, because the extra
> > speed was a steeper gear. So, he put a Brownie auxiliary tranny in it,
> > but since the Brownie is a reductin box, he put it in BACKWARDS...so he
> > got about a 2:1 overdrive! That made it just fine for cruising on the
> > freeway.
> > I'd suggest looking around at late model trucks, to see what they have
> > in the way of a granny gear 5 speed overdrive tranny. Beware hydraulic
> > clutches, though.
> > Jim F
> > 59s in AZ
> > oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959