i have a 89 dodge dakota 4x4 had the 3.9l v6 auto trans
i am working on putting in a 5.9l out of a 99 ram 1500 shortbed that got totaled have trans t-case and motor computer etc. my problem on this matter is old v6 motor mounts apper to attach to the front diff could i cut them and then where do i weild/attach the 360 mounts with out hitting my steering box?

 

The 99 should mount to the exact same motor mounts in the same spot as the 3.9 does, since the 3.9 is a shortened LA block.

If it were an older 360, then you may have problems, but by 1999, all blocks were supposed to have the mounting bosses.

That is, the motor mounts will bolt to the BLOCK the same - the RAM mounts won't fit the Dakota without work.

I'd use new motor mounts, natch, instead of the old tired V6 mounts.

RwP

 

see my issue is mounting the 360 motor mount plate for spacing on the frame and cuting down the 3.9l mounts ill try to grab a picture later on

 

No, it is not.

It is that you're trying to fight redoing the mounts when you don't have to.

See the FAQ here - from 1991 to 1997, the 3.9/5.2/5.9 all used the same motor mounts!

You should be able to use new V6 mounts on the 5.9.

Matter of fact ... checking RockAuto, the same motor mounts were used on the V6 and V8 for the 1991-1996 4WD, and the 2WD used the same motor mounts from 1987 to 1996 (!!!). (1991 had a different mount for the front diff, I bet.)

Unbolt those motor mounts you have from the BLOCK, and use new V6 mounts TO THE BLOCK, and you should be good to go.

Why, no, the RAM doesn't use the same motor mounts. So trying to fit the frame/diff side between the two will take work. Why bother, when the MOTOR side is the same?

Or are you trying to do more work for the sake of doing more work?

RwP

 

Ralph, When I look at Rock Auto's website, I believe it shows part no. A5294 and A2944 for the 87-90 v-6 4wd Dakota. They show A2955 and A2961 for the 91-96 v-8 4wd Dakota. Then they show A2953 and A2983 for the v-6 4wd 91-96 Dakota.
So according to them, they all seem to be different. Don't know if they will interchange or not....... but the part numbers are different.
Also, I am assuming the OP does have a 89 truck

 

I presume he's got a 1989 truck also since he lists that.

The front suspension was different for 1991 to 1996.

For 2WD, Anchor 2652 is the same for 1987 to 1996 3.9 V6.

For 4WD, they do list A5294 and A2944 for the 4WD, yes.

Suspension changed for 4WD in 1991, so the V6 4WD got a different motor mount, yes.

HOWEVER - the 1991-1996 2WD V8 got Anchor ... 2652! ( http://www.rockauto.com/catalog/rafr...&parttype=5552 for the 1995 for a quick check.)

So yes, the V8s got a stouter mount for 4WD, but it also got a beefier suspension and stouter axles.

OP is talking about grafting the V8 into a 1989 front suspension, which never had the V8 on the 4WD. However, the V6 mounts will fit and work.

(If you want to be that persnickty, he also needs V8 springs up front, because his V6 springs will sag a bit. Oops. Also the beefier diff and axles and brakes.)

RwP

 

Not trying to be persnickety, as I am planning a similar motor change myself. Just trying to understand what fits.
So he would keep the mounts for the 87-90 and bolt those to the magnum block?
Also, for the springs, the 87-90 use a torsion bar. Not sure what the 91 up use. I have not been able to locate a heavier torsion bar, so I guess cranking it up may do the trick.

 

We are pleased to provide vehicle build information per your request for
your 1989 Dodge Dakota.
According to our records, your vehicle was equipped from the factory
with the following:
VIN: 1B7GG26X8KS168860
Vehicle Description: DODGE DAKOTA 4X4 PICKUP
Model Year: 1989
Body Model: AN 5 L 61
Sales Code Description
ADAA Light Group
AKAA Chile Equipment Group
APDA Lower Two Tone Paint
BARP 90 Amp Alternator
BCDS 500 Amp Maintenance Free Battery
BGAS Power Front Disc/Rear Drum Brakes
BKES 9x2.5 HD Rear Drum Brakes
CBAP Straight Back Bench Seat
CDEP 6-Way Power Passenger Seat
CHES Deluxe Headliner
CJBS C/Coded Front Compartment Trim
CKEB Front Seat Area Carpet
CKJC Black Vinyl Floor Covering
CSRS Passenger Assist Handles
DGB All 4-Speed Automatic Transmissions
DGNS 4-Speed Automatic Transmission
DHAS Lock-Up Torque Converter
DMDS 3.55 Rear Axle Ratio
DRAS Corporate 8.25 Rear Axle
EAAC All Engines
GACS Tinted Glass Windows
GBBS Tinted Windshield Glass
GCBS Front Door Tinted Glass
GFDA Rear Sliding Window
GNAS Rear View Day/Night Mirror
GRUP Left Manual Mirror
GSUP Right Manual Mirror
GTUS 5 X 7 Mirrors
GVAC All Vehicles W/O Power Mirrors
HAA Air Conditioning
JCAS 85 MPH Primary Speedometer
JHAA Var Intermittent Windshield Wipers
JJAA Cigar Lighter
JKAS Locking Glove Box
JKBS Inst Panel Mounted Hood Release
LAAP Ignition Time Delay Lamp
LBBP Courtesy Lamps
LBCP Glove Box Lamp
LBDP Ash Tray Lamp
LDAP Underhood Lamp
LMAS Halogen Headlamps
MBAS Painted Front Bumper
MFCS Dark Silver Metallic Grille
MHAS Black Windshield Moldings
NAAS Federal Emissions
NBKS EVAP Control System
NCAS Air Pump
NDAS Catalytic Converter
NFSS 15 Gallon Fuel Tank
NHLS Windshield Wiper De-Icer
RAAC All Radio Equipped Vehicles
RALS AM/FM Radio
RCDA 4 Speakers
SBAS Power Rack and Pinion Steering
SCBS 2-Spoke Steering Wheel
SFAS Standard Duty Shock Absorbers
SGAS Rear Shock Absorbers
SHAS Front Stabilizer Bar
TAAC All Tires
TBBS Full Size Spare Tire
TBMS Tire Carrier Winch
TNCA P195/65R15 BSW AS Touring Tires
TZAP Goodyear Brand Tires
WJBA 15" Aluminum Wheels
XBS Pickup Box
YAAS Build To U.S. Mkt. Specifications
my build sheet i

im going to crank up the torsion bar or at least is my plan for the weight
the engine is out of both trucks the motor mounts on my v6 bolt from engine to frame/front diff working on picture cant seem to get it to up load yet
the 99 is nothing but a frame now had the straight axle and mount conected to frame bracket was removed with portion of frame to install to my truck

 

 

91 up 4x4 use torsion bars too. You should be fine with using a stock V8 torsion bar. I want to drop a 5.9 or 4bt into my Dak once the 3.9 blows xD