Jump to content

360 Magnum, NV3500 in my 48 Plymouth


Smokeybear

Recommended Posts

Well, there's no turning back now. I pulled the L6 and three speed to make room for the 360 and 5 speed. I've got the new engine and trans in place after going through them. I made a new trans crossmember and "massaged" the passenger firewall. It fits pretty well. Here's the progress pics. 

IMG_0483.jpg

 

IMG_0482.jpg

 

You may also notice I completely rebuilt the front suspension and moved the lower spring buckets to the bottom of the A-arms. I added new aerostar springs as well. I've got the power booster and MC in place along with the clutch MC and the pedals mounted. I've got a long way to go but so far so good.

 

This is what happens when I start a simple re-wiring project. LOL.

  • Like 5
Link to comment
Share on other sites

Damn, that should run just fine! 

I hope that you are going to share a lot more detailed pics of the various install issues. I get plenty of calls

from folks wanting to pick my brain on this kind of swap and would happily refer them to your build thread.

Link to comment
Share on other sites

Damn, that should run just fine! 

I hope that you are going to share a lot more detailed pics of the various install issues. I get plenty of calls

from folks wanting to pick my brain on this kind of swap and would happily refer them to your build thread.

Yes, I've got a bunch of pics and I've taken fairly meticulous notes. Once I get it fired for the first time so that I know I've done everything correctly I'll add step by step instructions on the swap.

Link to comment
Share on other sites

Interesting looking front shock mounts. What are they from and what shocks are you using?

Those are a story in themselves. LOL. They are actually the rear shock mount/ubolt brackets that are original to the car. I used some 3/16 flat stock to make a mount to weld to the frame, then cut the shock mount down to use only 3 of the original 5 holes in it. Bolted that to the mount. It works well. The shocks are some I had lying on the shelf from another project. I'm not even sure what they are for actually. I can get the numbers off of them if needed. I'll also get some better pictures of the mounts and post them up also.

Link to comment
Share on other sites

Sweet! How in the world did you squeeze that exhaust manifold next to the steering?

 

 

Your first clue will be the length of the front motor mounts where they fasten to the frame.  I'd guess the motor is offset to the right about an 1 1/2 " to 2"

Yup, 1 5/8 to the passenger side. It may actually go back over a bit when I get the rack and pinion installed. I'm waiting on parts for that. Besides that I got some work done today...

IMG_0489.jpg

 

IMG_0487.jpg

 

 

Here are those shock mounts I mentioned...

IMG_0486.jpg

IMG_0485.jpg

Link to comment
Share on other sites

What is your evaporator/heater core box from? It looks like it fits really nice under the dash.

Mid 90's Dakota. Same as the trans, power brake booster and MC, pedals, and other miscellaneous parts. I bought a truck that someone had cut the cab and bed off of to make a "fun buggy". It was running and driving. I pulled what I needed and scrapped the rest.

Link to comment
Share on other sites

Moving along, the power rack and pinion and steering column is in. It fits VERY nice...

IMG_0494.jpg

IMG_0493.jpg

IMG_0492.jpg

 

Now that all the mechanical items are sorted, I'll be starting on the part of the project that got me started in the first place...the wiring.  I'll post up pics of the radiator install tomorrow, 

Link to comment
Share on other sites

  • 2 weeks later...

engone looks great  sittign in there,,,  great  idea on the  front  shock  brackets,,,  lets see some  pics of  the rack  install please,,,

Sorry it took me so long, it's been a busy week at work. Here are some pics of the rack install...

IMG_0499.jpg

IMG_0498.jpg

 

You can see the bracket I fabbed to use the original tie rods.

 

I also got the instrument cluster installed...

 

IMG_0510.jpg

IMG_0509.jpg

 

It was hard to get a good picture with the curved plexiglass.

Link to comment
Share on other sites

now thats  very  interesting,,,your modifacation to use the  stock steering  linkage with that rack,,,cant see  the  end  of the  bracket  you made,,,looks doubled over for support,,,  how long till  you try to  drive it  ,,,will be  interestign to hear how  it  works,,,looks like  it should be  no problem,,,good idea,,,,

Link to comment
Share on other sites

Yes some better pics would tell more. The one thing you do not want is the inner tie rod ends to move up and down (due to bracket deflection or movement) as you drive.

 

Related to that, If the bolted connection to the rack relies on friction alone, for rotational alignment, you will probably have issues.

 

If you have "socketed" or keyed the bracket to the rack, that part will be far more secure.

 

That long arm you added, however, means that the steering has a lot of leverage over whatever keeps the rack aligned. In a hard left turn, deflection of the left tire will cause some serious jacking forces on the end of the new bracket.

Link to comment
Share on other sites

Is that one of the Rag type joints flexing for steer column alignment or a a real u-joint?

 

The Rag type doing  a flex motion do not last long if so, with bad results.

 

Just want ya safe!

 

DJ

Link to comment
Share on other sites

"...failure will result in metal to metal back up......."

 

With a goodly slop though.

 

But a rag joint isn't intended for much (if any) any axial misalignment. The shafts must be in line or you'll rip it slowly apart. It can also cause "notchy" steering feel & wear on the steering pinion input seal.

 

OK for a puttering trailer queen, but as a daily driver it's not reliable.

Link to comment
Share on other sites

not reliable....what do you think they used for umpteen years..how many of these cars/trucks still have the original rag..more than you can fathom..how many are upgraded to a telescoping universal joint style..only those that enjoyed a retrofit of modern suspension in form of a clip...tell you what...go out and find one of these columns and entertain the removal without unbolting the rag...after defeat (no knife/saw please) come back and let me know how much you sweated and fought and fumed over that little rag...

  • Like 2
Link to comment
Share on other sites

No, it's not a rag joint, it's the shaft that was original to the Dakota, two U-joints with a telescopic shaft. The fabbed piece was made by sandwiching the 48s original ends of the steering knuckle. (The fork at the end of the steering box that connects to the tie rods) so that I would get as close to the original geometry as possible. The rack is positioned so that the two bolts in the center section is in line with not only the lower control arm pivots but also with the line that goes between both steering arms of the spindle at ride height. There is no play up/down or side to side of the fabbed connection that I can tell. I'll be testing it out in the spring when the weather breaks. I'll let you guys know how it goes.

  • Like 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Terms of Use