Ok Im looking for a Np435 Bellhousing for a slant. Got a gay that says he has a Bellhousing from a 68 with a Np420. I've never heard of the Np420. Plus aren't the 62-71 hydraulic clutches? If not all are is it the same Bellhousing?
I want to build a slant six powered 4spd 4wd. Figure with the Np435 and 4.1-4.56 gears and 33" tires it'll be a neat little trail rig. Oh and I want to use a Ramcharger frame with a clubcab cab. Not sure on a box yet. Thanks

you have a GAY?

never heard of a 420 for-speed,but have heard of 420 for weed

I thought all sweptline trucks had hydro clutch.

clubcab/RC/short bed 4x4 running a /6 granny tranny turning 4.56 gears with 33" tires.

sound like it might do some scratching with no problems.

I thought 62-71 were hydro swell.
What you know bout UPS

I've an NP420 sitting in my backyard.

It's a cast iron granny low 4 speed with no synchro in Second (or First) gear.

It needs a 5.125" hole to fit into.

The bolt pattern is two on each side, one pair on top and one pair in the middle. The passenger side lower hole is a little farther out from center.

Look it up online, it has a pretty low First. I don't like it because Third is in the 1.7 range so shifting down going up a hill puts the engine into "screaming" mode.

The bellhousing between the 420 and my Poly 318 is 8 3/16" deep, face-to-face. It has about a million holes in the block side, supposed to bolt up to flathead 6, A/LA engine, possibly the slant 6 as well.

The hydraulic clutch uses a slave cylinder bolted to the passenger side of the bellhousing. It is a very simple setup, no mechanical linkage to get messed up. The master cylinder is the same as the brake M/C on the older Sweptlines.

If I can figure out how to get pictures off my iphone, I'll post some.

One thing for sure, the NP420 isn't a high dollar transmission, but it is pretty stout.

R.

See also, http://www.sweptline.org/forums/viewtopic.php?f=19&t=11856&p=80934

I dont plan to use the 420. Im going to use a 435. The guy that has the bell said he believes its the same as the 435. Im just wanting a Bellhousing to bolt a slant to a Np435.
Thanks for the info

Iv seen a couple of 60s /6 trucks that had cast iron adapters that mated to a V8 bell..

I found a few there for you


1983
Transmission Bellhousing Only
Dodge Truck 150 Series 225 6,4 SP,4x4 A 090114 $100 Penrose Auto Salvage USA-CO(Penrose) E-mail 1-800-610-8074 1060
1981
Transmission Bellhousing Only
Dodge Truck 150 6-225 (3.7L), 11' cl A D910032 $70 Intermountain Auto Recycling USA-ID(Rigby) Request_Quote (208)745-8766 Request_Insurance_Quote
560
1983
Transmission Bellhousing Only
Dodge Truck 150 Series 3.7;3SPOD;RWD A C10393 $50 Johnson Auto Recycling USA-NC(Asheville) Request_Quote 1-800-222-0815 Request_Insurance_Quote
2177
1982
Transmission Bellhousing Only
Dodge Van UPULL,STOCK NO. 083769019 083769019 $45 ARichner Auto Parts USA-PA(Milesburg) Request_Quote 1-814-355-3851/ 1-888-572-3428 Request_Insurance_Quote
2217
1983
Transmission Bellhousing Only
Dodge Truck 100 Series 11' D100-83 $45 Action Auto & Truck USA-AZ(Tucson) Request_Quote 1-520-790-3600 / 1-800-432-5394 Request_Insurance_Quote
1207
1983
Transmission Bellhousing Only
Dodge Truck 150 Series 4SP,RWD A 012152 $35 Conrad's Auto Salvage RP+ Member - QRP USA-WI(Mondovi) Request_Quote 1-800-353-4611 Request_Insurance_Quote
1468
1982
Transmission Bellhousing Only
Dodge Truck 150 11' Cl- A1322 $Call DeNaples Auto Parts USA-PA(Dunmore) Request_Quote 1-800-426-9696 Request_Insurance_Quote
2303
1982
Transmission Bellhousing Only
Dodge Van not Caravan 150 Series MUST MATCH CLUTCH SIZE,MQ05723 006128 $Call A-1 Used Auto & Truck Parts USA-FL(Saint-Augustine) E-mail 904-824-0103 / 800-504-1155 2485
1981
Transmission Bellhousing Only
Dodge Van not Caravan 250 USED 11 INCH 1-800-834-6924 $Call Howbill Auto Parts, Inc. Store #3 USA-NY(Belmont) E-mail 585-268-5611 / 800-834-6924

So all those listed will pull the part for me and ship it?

sometimes they already have them on the shelf.. you want the 1 for an 11" clutch..

Not for sure on the np420 bolt pattern, but I think it shares a pattern with the 435. As far as the hydro clutch in the sweptlines, they were hydro through 68. In 69 they went to a mechanical linkage like the 70's era trucks.

M37's have NP420's behing the flathead-6

I can't remember exactly but I have a bellhousing on my 440 that came from a 400, 2wd truck with a NP 420 or 421 transmission. First is in the high 3.? or low 4.? and it's heavy. But it bolted up to my 435 no problem.

No, it was a NP445, also called NP4530.

The 420 had a 6.something first gear and was only synchroniazed in Third and Fourth. I think it disappeared aftar about 1968.

R.