Best 4 speed swap setup
#3092671
11/08/22 07:55 PM
11/08/22 07:55 PM
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Joined: Jun 2007
Posts: 1,169 clarks summit pa
73cuda340
OP
super stock
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OP
super stock
Joined: Jun 2007
Posts: 1,169
clarks summit pa
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I'm going to swap my 85 w150 from an automatic over to a 4 speed. I would love to find one of the close ratio np435s, but from what I've read, they are pretty much nonexistent. Is there a certain year transmission and transfer case setup that is better than others? I only use the truck for work and light hauling, no off roading. I want part time 4 wheel drive and not full time, as I know some 70s units were full time. Also the engine that I'm planning on using is a 1973 340 that I have, but the 73s had an external balance crankshaft, so I'm not sure if the flywheel and clutch setup (23 spline) would work with the np435.
1973 Cuda 528 all aluminum Hemi, 4 speed, 3.23 Sure-Grip,
(JA5) Silver Frost Metallic
1973 Challenger Rallye 340
1985 W150 Power Ram prospector
1986 Camaro IROC-Z 305 tpi
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Re: Best 4 speed swap setup
[Re: 73cuda340]
#3092687
11/08/22 08:50 PM
11/08/22 08:50 PM
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Joined: Jan 2003
Posts: 43,511 Round Lake Beach, Illinoisy
Rhinodart
Rhinotruck
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Rhinotruck
Joined: Jan 2003
Posts: 43,511
Round Lake Beach, Illinoisy
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I have a complete set-up off a late 70's Power Wagon, not sure what trans it is but has an attached transfer case. Clutch, bellhousing, flywheel, shifter basically everything but driveshaft. This is a stock picture of what it looks like, but I can take a picture tomorrow of exactly what is with it.
The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.
JB Rhinehart, Realist
A-Body's RULE!
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Re: Best 4 speed swap setup
[Re: 58pwrwgn]
#3093904
11/13/22 11:14 AM
11/13/22 11:14 AM
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Joined: May 2004
Posts: 136 MN
58pwrwgn
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member
Joined: May 2004
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MN
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Re: Best 4 speed swap setup
[Re: 58pwrwgn]
#3094256
11/14/22 11:38 PM
11/14/22 11:38 PM
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Joined: Jun 2007
Posts: 1,169 clarks summit pa
73cuda340
OP
super stock
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OP
super stock
Joined: Jun 2007
Posts: 1,169
clarks summit pa
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Would it be possible to use the 130 tooth flywheel with the truck 4 speed? I know it's going to be tough to find another flywheel for that engine being that it's external balance.
1973 Cuda 528 all aluminum Hemi, 4 speed, 3.23 Sure-Grip,
(JA5) Silver Frost Metallic
1973 Challenger Rallye 340
1985 W150 Power Ram prospector
1986 Camaro IROC-Z 305 tpi
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Re: Best 4 speed swap setup
[Re: 73cuda340]
#3094312
11/15/22 11:00 AM
11/15/22 11:00 AM
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Joined: May 2019
Posts: 6,215 nowhere
Sniper
master
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master
Joined: May 2019
Posts: 6,215
nowhere
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Would it be possible to use the 130 tooth flywheel with the truck 4 speed? I know it's going to be tough to find another flywheel for that engine being that it's external balance. Just buy a neutral balance flywheel and have the machine shop drill it out for the proper imbalance. The drawings are in the Moparts tech archive FLYWHEELTemplate .
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Re: Best 4 speed swap setup
[Re: Sniper]
#3094320
11/15/22 11:24 AM
11/15/22 11:24 AM
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Joined: Mar 2008
Posts: 766 Ohio
Dan Brewer
super stock
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super stock
Joined: Mar 2008
Posts: 766
Ohio
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Would it be possible to use the 130 tooth flywheel with the truck 4 speed? I know it's going to be tough to find another flywheel for that engine being that it's external balance. Just buy a neutral balance flywheel and have the machine shop drill it out for the proper imbalance. The drawings are in the Moparts tech archive FLYWHEELTemplate . That drawing is for 10.5" 130 tooth flywheel. Chrysler never used 11.0" 143 tooth wheel on the 340 cast crank engines. Will it work? I don't know. I do know the location of the drilled balance holes on a 360 cast crank flywheel are different between the 130/143 tooth flywheels.
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Re: Best 4 speed swap setup
[Re: Sniper]
#3096656
11/23/22 09:45 PM
11/23/22 09:45 PM
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Joined: Jun 2007
Posts: 1,169 clarks summit pa
73cuda340
OP
super stock
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OP
super stock
Joined: Jun 2007
Posts: 1,169
clarks summit pa
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Ok thanks, but just out of curiosity, is it possible to use the 130 tooth flywheel setup instead of the 143?
1973 Cuda 528 all aluminum Hemi, 4 speed, 3.23 Sure-Grip,
(JA5) Silver Frost Metallic
1973 Challenger Rallye 340
1985 W150 Power Ram prospector
1986 Camaro IROC-Z 305 tpi
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Re: Best 4 speed swap setup
[Re: 73cuda340]
#3097701
11/28/22 09:47 AM
11/28/22 09:47 AM
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Joined: Jan 2003
Posts: 74,942 U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,942
U.S.S.A.
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Ok thanks, but just out of curiosity, is it possible to use the 130 tooth flywheel setup instead of the 143? If the bellhousing calls for a 143 tooth flywheel then no you can not use a 130 tooth as the diameter of it is smaller and the starter will not engage withthe flywheel. If you want to use a 130 tooth wheel you need a bellhousing that is speced for one .
running up my post count some more .
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Re: Best 4 speed swap setup
[Re: Hugh Jorgan]
#3099124
12/03/22 01:06 AM
12/03/22 01:06 AM
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Joined: Jun 2007
Posts: 1,169 clarks summit pa
73cuda340
OP
super stock
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OP
super stock
Joined: Jun 2007
Posts: 1,169
clarks summit pa
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Ok thanks, now back to solving my external balance flywheel issue then. I don't trust any of the machine shops around me to handle rebalancing an internal one to external
1973 Cuda 528 all aluminum Hemi, 4 speed, 3.23 Sure-Grip,
(JA5) Silver Frost Metallic
1973 Challenger Rallye 340
1985 W150 Power Ram prospector
1986 Camaro IROC-Z 305 tpi
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Re: Best 4 speed swap setup
[Re: Hugh Jorgan]
#3099369
12/04/22 12:46 AM
12/04/22 12:46 AM
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Joined: Aug 2003
Posts: 43,096 Bend,OR USA
Cab_Burge
I Win
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I Win
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Posts: 43,096
Bend,OR USA
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Car bell (130) vs. truck bell (143) B and E body cars have had both 130 and 143 tooth flywheels depending on which year and motor size, IE 1967 Dodge with 383 gets 130 tooth flywheel and bellhouisng, 440 get the 143 tooth bel and flywheel, But the 1969 B bodies got 143 tooth on both BB, B motors and some 426 hemi motors hopefully someone more knowledgeable on this will chime in and offer better information on this
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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