What tranny could it be?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*wolfthing2000* · 01-28-2005, 08:07 PM

I ran accross a trans for sale that has me baffled. It was assumed to be a SM 465. Not. The bellhousing says GM made in Mexico cast in. It came out of a 1 ton 70 model. There is a hump towards the rear drivers side and reverse gear is to the right and forward. The same side as 465 but opposite direction?????? Does anyone know what it is? It has a PTO cover on the passengers side and not the drivers.
Dave

69 longhorn · 01-28-2005, 08:41 PM

? here are a few to look at.... http://www.novak-adapt.com/knowledge...on_gateway.htm

**kwmech** · 01-28-2005, 11:57 PM

Sounds like a backwards 420. Never heard of reverse in that direction in any trans

*wolfthing2000* · 01-31-2005, 01:19 PM

It is a wierd one! It has the sm465 length, but thats where it starts getting different. Only one PTO port on passengers side. Reverse shifting is on the same side as the 465 but forward engage instead of back.
Still researching.
Dave

*wolfthing2000* · 02-02-2005, 01:14 PM

ttt

86SILVERADO · 02-02-2005, 02:09 PM

Not trying to bust your you know whats but it sounds like the 420 but you maybe are looking at backwards or something? The way you describe it if what you call the rear of the tranny were actually the front then it would match a 420 exactly.

*wolfthing2000* · 02-02-2005, 05:48 PM

Please read my post again. The 420 has the pto door on drivers side and hump on passengers side. I know that tranny like the back of my hand! I have one I adapted to a Jeep. I also have about 6 spare 420s!!!!
Dave

*wolfthing2000* · 02-02-2005, 05:50 PM

Rear of vehicle.

Blazer1970 · 02-02-2005, 06:27 PM

NP435? They were used in two wheel drive GM trucks of this era. I have never owned one, and I don't know the shift pattern.
http://www.novak-adapt.com/knowledge/np435.htm

**JIMs70GMC** · 02-02-2005, 07:15 PM

Yep, NP435 responded on your other post. Should have an aluminum top.

*wolfthing2000* · 02-03-2005, 01:11 PM

The Length Is 12, The Np235 Is 10 3/4. That Is Why The Guy Thinks It Is The 465.

**JIMs70GMC** · 02-03-2005, 04:17 PM

The 465 has 2 pto covers. Do you have a picture? It is a 4spd? At least that's what everybody is assuming.

*wolfthing2000* · 02-04-2005, 01:08 PM

4 speed

01-28-2005, 08:07 PM	#1
wolfthing2000 Account Suspended Join Date: Oct 2004 Posts: 1,276	What tranny could it be?? I ran accross a trans for sale that has me baffled. It was assumed to be a SM 465. Not. The bellhousing says GM made in Mexico cast in. It came out of a 1 ton 70 model. There is a hump towards the rear drivers side and reverse gear is to the right and forward. The same side as 465 but opposite direction?????? Does anyone know what it is? It has a PTO cover on the passengers side and not the drivers. Dave

02-02-2005, 02:09 PM	#6
86SILVERADO Registered User Join Date: Dec 2002 Location: Hills of Western Mass Posts: 626	Not trying to bust your you know whats but it sounds like the 420 but you maybe are looking at backwards or something? The way you describe it if what you call the rear of the tranny were actually the front then it would match a 420 exactly. __________________ 86 Silverado C10 back to 305 power! 67 C30 Dually Dump, with 350 transplant, Rockhauler 05 Duramax 3500 "If at first you don't succeed, try a bigger hammer" Member of the 1-Ton club!

02-02-2005, 06:27 PM	#9
Blazer1970 Registered User Join Date: Dec 1999 Location: Old Mission, MI, USA Posts: 2,510	NP435? They were used in two wheel drive GM trucks of this era. I have never owned one, and I don't know the shift pattern. http://www.novak-adapt.com/knowledge/np435.htm __________________ Tim

02-02-2005, 07:15 PM	#10
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Yep, NP435 responded on your other post. Should have an aluminum top. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

02-03-2005, 04:17 PM	#12
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	The 465 has 2 pto covers. Do you have a picture? It is a 4spd? At least that's what everybody is assuming. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

01-28-2005, 08:41 PM	#2
69 longhorn Registered User Join Date: Aug 2001 Location: rock island,il,usa Posts: 5,382	? here are a few to look at.... http://www.novak-adapt.com/knowledge...on_gateway.htm

01-28-2005, 11:57 PM	#3
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,504	Sounds like a backwards 420. Never heard of reverse in that direction in any trans

01-31-2005, 01:19 PM	#4
wolfthing2000 Account Suspended Join Date: Oct 2004 Posts: 1,276	It is a wierd one! It has the sm465 length, but thats where it starts getting different. Only one PTO port on passengers side. Reverse shifting is on the same side as the 465 but forward engage instead of back. Still researching. Dave

02-02-2005, 01:14 PM	#5
wolfthing2000 Account Suspended Join Date: Oct 2004 Posts: 1,276	ttt

02-02-2005, 05:48 PM	#7
wolfthing2000 Account Suspended Join Date: Oct 2004 Posts: 1,276	Please read my post again. The 420 has the pto door on drivers side and hump on passengers side. I know that tranny like the back of my hand! I have one I adapted to a Jeep. I also have about 6 spare 420s!!!! Dave

02-02-2005, 05:50 PM	#8
wolfthing2000 Account Suspended Join Date: Oct 2004 Posts: 1,276	Rear of vehicle.

02-03-2005, 01:11 PM	#11
wolfthing2000 Account Suspended Join Date: Oct 2004 Posts: 1,276	The Length Is 12, The Np235 Is 10 3/4. That Is Why The Guy Thinks It Is The 465.

02-04-2005, 01:08 PM	#13
wolfthing2000 Account Suspended Join Date: Oct 2004 Posts: 1,276	4 speed



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