Author Topic: 1984 to 1987 Slant Six clutch  (Read 809 times)

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Offline DODGEBOYS

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1984 to 1987 Slant Six clutch
« on: July 3, 2020, 09:33:22 am »
howdy / George and Lanty l,ve been beating my brains out try,in to get this info , it seems the /6 clutch on some trucks [ 2WD np435 ]  have a STEPPED 11 inch clutch and from what l,ve found out they have done this as far back as 1976 [ a post on here with the same problem from years back 2013/ What flywheel do l need ] so l have a potential new member that has a 1987 with the same problem , ALL the clutches are for a FLAT F/W and NONE of my parts books or FSM's give NO mention of a stepped F/W , as a matter of fact the parts books and FSM only show or list a FLAT F/W

# 4295-215 stepped flywheel cast right into the back and NO listing in the parts books
# 4295-216 flat flywheel cast right into the back and whats listed in all the parts manuals

so from my understanding a 2WD truck 1/2 ton with a slant six and a NP 435  is very RARE , which makes me believe they stepped the flywheel to fit the LARGE clutch of the np435 into the small light duty 1/2 ton aluminum bellhousing , this l dont know and try,in to figure out which clutch and flywheel this guy needs , he got the trunk in parts as the previous own took it apart to replace the clutch and ran into the same problem , new owner has flywheel only



put your truck info HERE
MOPAR TO YA!!!!!! AARON HOWORD TOWNSEND / SLANTEDMIND---GOD BLESSDODGEBOYS FSM STORE
[email protected]
former Parts Mgr & A1 Tech @ Pete's Chrysler -Plymouth
DO NOT use the site IM,s to contact me  l have them turned OFF

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    Offline 712edf

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    Re: 1984 to 1987 Slant Six clutch
    « Reply #1 on: July 3, 2020, 03:48:50 pm »
    Everybody on all the Dodge Sweptline & PW sites swears by this company for getting the correct oddball clutch disc for Dodge trucks. I used them for my 1975 W600 NP540 5 speed & they nailed it correctly first time.

    May be worth giving them a call.

    http://www.hrclutch.com/

    Bucky
    1975 W600   318  NP540  T223Rockwell tcase, Rockwell front & rear axles, 6.8 ratio

    Offline SuperBurban

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    Re: 1984 to 1987 Slant Six clutch
    « Reply #2 on: July 3, 2020, 05:13:38 pm »
    I would not consider a 2wd slant 6 w/NP435, as uncommon. Almost every 70's highway department truck was a slant w/ a 435.

    I'll check back when I get back home later, and see what I can dig up. 
    77 W200, 360/727/NP203/D44HD/D60 (Wifes Toy)
    77 M887- 318/727/NP203 D44HD/D60
    78/86 Ramcharger.  360/727/NP203 D44/9&1/4
    85/89/90 D150/W250 5.9TBI/435/241 D44HD/D60HD
    85 W350 360/727/241 D44HD/D60
    97 B3500 5.9MPFI/518 D60HD
    20 Pacifica Hybrid, 3.6 V6, EVT 1 speed trans.
    projects:
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    Offline Elwenil

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    Re: 1984 to 1987 Slant Six clutch
    « Reply #3 on: July 3, 2020, 06:26:20 pm »
    Wouldn't a '87 Slant 6 use a hydraulic clutch?  If it's like the later V8 versions, it will be very different from the mechanical linkage versions.
    L.Clemons

    1988 Ramcharger AW450-318EFI-NP435 4 speed-NP205 Transfer Case-Dana 60s-Braden Wormdrive Front Winch

    2018 Ram 2500HD Crew Cab 4WD 5.7L

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    Offline 712edf

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    Re: 1984 to 1987 Slant Six clutch
    « Reply #4 on: July 3, 2020, 06:58:49 pm »
    I think they did switch to fluid in 1987. I can't remember if this was across the board or just V8's at first. Dodge would stagger crap from time to time, doing something to the 318 one year then applying that to the 360 the next.

    I believe the 225 six was gone after 87.

    My limited resources just show 143 tooth flywheels with NP435 transmissions, no matter the engine (within light duty trucks).

    Also shows 11" clutch disc. no distinction as to stepped or flat flywheels. In fact some of the V8's show same part number for clutch disc.

    Maybe look over on the slantsix.org site.

    Bucky
    1975 W600   318  NP540  T223Rockwell tcase, Rockwell front & rear axles, 6.8 ratio

    Offline Elwenil

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    Re: 1984 to 1987 Slant Six clutch
    « Reply #5 on: July 3, 2020, 07:23:48 pm »
    '87 was definitely the year the Slant 6 went hydraulic, the V8s didn't get it until 1988.  '87 was also the last year for the Slant 6 as the 3.9L V6 took over it's place in '88.  Of course that doesn't mean that this specific truck uses a hydraulic clutch.  Some trucks have been severely modified from how they left the factory so long ago.
    L.Clemons

    1988 Ramcharger AW450-318EFI-NP435 4 speed-NP205 Transfer Case-Dana 60s-Braden Wormdrive Front Winch

    2018 Ram 2500HD Crew Cab 4WD 5.7L

    I am the unknown Will,
    The Anger that threatens glory and ruin:
    Lord of Storms am I,
    in heaven high and caverns deep.
    I am the Father of the War,
    Odin for you, Wotan for him,
    Wayfarer, Wanderer, beggar, king,
    numen, genius, strength and ring.

    Offline SuperBurban

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    Re: 1984 to 1987 Slant Six clutch
    « Reply #6 on: July 3, 2020, 11:31:03 pm »
    Dean, have you checked to verify that is the correct flywheel? I thought the slant/6 had a crank bolt off set like most mopars.
    77 W200, 360/727/NP203/D44HD/D60 (Wifes Toy)
    77 M887- 318/727/NP203 D44HD/D60
    78/86 Ramcharger.  360/727/NP203 D44/9&1/4
    85/89/90 D150/W250 5.9TBI/435/241 D44HD/D60HD
    85 W350 360/727/241 D44HD/D60
    97 B3500 5.9MPFI/518 D60HD
    20 Pacifica Hybrid, 3.6 V6, EVT 1 speed trans.
    projects:
    85 Country Coach RV, 5.9 Cummins/TH475,GV od,US gear Exhaust brake,D70HD (4 wheel disk brakes, 10 lug 19.5 rims.

    Offline dodge82273

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    Re: 1984 to 1987 Slant Six clutch
    « Reply #7 on: July 4, 2020, 02:32:24 am »
    slant 6 and the 435 , I had a used state truck , with that , and a 9 foot pick up bed ( fleetside I think its called , not a  fenderside)  the bellhousing shown is for a mechanical linkage obviously , note bellcrank ball .
    78 to 93 parts trucks
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    Offline DODGEBOYS

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    Re: 1984 to 1987 Slant Six clutch
    « Reply #8 on: July 6, 2020, 11:07:10 am »
    he has the SAME flywheel as the one from the OLD post where the member has a 1976 truck , yes 1987 was the LAST year for /6  and first year for 3.9  and my 87 parts book shows mechanical linkage standard and hydo as an option in 1987 in ALL trucks

    NOTE / also its a 131 tooth flywheel and the V8's had the staggered bolt and not the /6 , because a 131 - V8 318 flywheel has one bolt that does not line up , which could be the /6 stagger
    put your truck info HERE
    MOPAR TO YA!!!!!! AARON HOWORD TOWNSEND / SLANTEDMIND---GOD BLESSDODGEBOYS FSM STORE
    [email protected]
    former Parts Mgr & A1 Tech @ Pete's Chrysler -Plymouth
    DO NOT use the site IM,s to contact me  l have them turned OFF

    Offline Elwenil

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    Re: 1984 to 1987 Slant Six clutch
    « Reply #9 on: July 6, 2020, 05:32:14 pm »
    The Mopar Parts Manual lists the hydraulic clutch for Slant 6 engines in D series trucks with the NP435 or 833.  It will list the mechanical clutch linkage as well because the '87 manual also has the '86 year stuff in it as well.
    L.Clemons

    1988 Ramcharger AW450-318EFI-NP435 4 speed-NP205 Transfer Case-Dana 60s-Braden Wormdrive Front Winch

    2018 Ram 2500HD Crew Cab 4WD 5.7L

    I am the unknown Will,
    The Anger that threatens glory and ruin:
    Lord of Storms am I,
    in heaven high and caverns deep.
    I am the Father of the War,
    Odin for you, Wotan for him,
    Wayfarer, Wanderer, beggar, king,
    numen, genius, strength and ring.

    Offline 712edf

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    Re: 1984 to 1987 Slant Six clutch
    « Reply #10 on: July 6, 2020, 06:38:56 pm »
    I've not seen a 435 that didn't have the larger 143 tooth flywheel, as far as light duty trucks go. The 130 tooth flywheel was with the 833 tranny, car or truck. But then again I'm used to V8's, not sure when it comes to the /6.

    Bucky
    1975 W600   318  NP540  T223Rockwell tcase, Rockwell front & rear axles, 6.8 ratio

    Offline DODGEBOYS

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    Re: 1984 to 1987 Slant Six clutch
    « Reply #11 on: July 6, 2020, 10:15:56 pm »
    The Mopar Parts Manual lists the hydraulic clutch for Slant 6 engines in D series trucks with the NP435 or 833.  It will list the mechanical clutch linkage as well because the '87 manual also has the '86 year stuff in it as well.

    Lanty l have both the 86-87 book and the 1987 ONLY parts book
    put your truck info HERE
    MOPAR TO YA!!!!!! AARON HOWORD TOWNSEND / SLANTEDMIND---GOD BLESSDODGEBOYS FSM STORE
    [email protected]
    former Parts Mgr & A1 Tech @ Pete's Chrysler -Plymouth
    DO NOT use the site IM,s to contact me  l have them turned OFF

    Offline Elwenil

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    Re: 1984 to 1987 Slant Six clutch
    « Reply #12 on: July 7, 2020, 05:47:42 am »
    An '87 only book would probably have been one of the early printings and would not have corrections from later editions.  Back when we still had paper manuals, it was very common for them to send us new versions of manuals about every week, mostly for the current models, to show part number changes and corrections.  About the only place to get a single year '80s era manual these days is to use StarParts, which is supposed to show one year only, but it's not very good at it since it's not worth Mopar's time to correct issues with the years for vehicles that all the parts for have been cancelled decades ago.
    L.Clemons

    1988 Ramcharger AW450-318EFI-NP435 4 speed-NP205 Transfer Case-Dana 60s-Braden Wormdrive Front Winch

    2018 Ram 2500HD Crew Cab 4WD 5.7L

    I am the unknown Will,
    The Anger that threatens glory and ruin:
    Lord of Storms am I,
    in heaven high and caverns deep.
    I am the Father of the War,
    Odin for you, Wotan for him,
    Wayfarer, Wanderer, beggar, king,
    numen, genius, strength and ring.

    Offline DODGEBOYS

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    Re: 1984 to 1987 Slant Six clutch
    « Reply #13 on: July 7, 2020, 11:52:09 am »
    either way he has a /6 with mechanical linkage and still try'in to figure this out / so which motor has the ONE offset bolt hole the 318 or the /6 , because l have a few 131 FW he could use if they would fit , could have it machined
    put your truck info HERE
    MOPAR TO YA!!!!!! AARON HOWORD TOWNSEND / SLANTEDMIND---GOD BLESSDODGEBOYS FSM STORE
    [email protected]
    former Parts Mgr & A1 Tech @ Pete's Chrysler -Plymouth
    DO NOT use the site IM,s to contact me  l have them turned OFF

     

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