Drive train swap

[GLUGS]

Has anyone ever swapped a 4x4 720 drive train And engine into a 620. If anyone has how easy or hard was it. I'm looking to put a bit more of an oomf into a 620

[datzenmike]

What you should do is put a 620 body and box onto a 720 4X4 frame. Now it seems way easier. The 720 is IFS and would be a nightmare to graft into a 620. Then the transfer case. Swap the body, much easier.

 

If you have a long wheelbase you'll need a long wheelbase 720 4x4, If regular wheelbase a short 720.

[abbylind]

What datsunmike said...mucho easier  :thumbup:

When mine gives up the ghost thats my plan...

[Stoffregen Motorsports]

Make sure it's currently registered before you do the body swap. If you have to do a VIN verification to get it registered, they may not like the fact that it's made out of two vehicles.

[hosestop@msn.com]

I have a 93 Hardbody 4x4 short bed with KA24e 3 valve 5 spd(needs repair)that would be great for this swap I may sell as project was about to have motor rebuilt.

[hosestop@msn.com]

Also re. truck was a water district truck has 4.30 gears and AC intact never messed with suspension stock rims ,roll up windows ,white , I have a sick mind was considering an SR20det 4x4 and not swapping body to 620.Pm me if int. thanks.

 

 

[Charlie69]

I did a frame swap on my 66 520. I put a 1980 720 chassis under it with a 1976 L20B automatic trans.  When I was at AZ DMV doing a abonded title level 2 inspection on my 85 720 ST I asked them what I needed to do on my 66 520.  I was told by the inspection officer to bring it down for a level 2 inspection and they will reissue the 66 title with the current frame and engine numbers.

 

When I get in drivable I will take it in and have this done, that way if I am out of state and get pulled over (mainly in CA & TX) they cannot impound my truck for non matching numbers.

[hosestop@msn.com]

1993 truck was a stock kA24e I believe SR20 is a direct bolt in with bell swap and shallow front sump looks will clear front diff. Cost is the problem ,they are like 2700 at this time S13det.Would have to sell 86 Toyo 4x4 x cab shop truck for a standard cab short bed Sleeper.

[banzai510(hainz)]

Buy a Jeep Cammanche. EZer

[GLUGS]

Really the Comanche frame is more compatible with the 620 body?

[banzai510(hainz)]

NO just EZer to buy a truck already done than worrying about swaping things over and waisting time. Most time these frame swaps are never completed.

 

Next week a 4x4 620 will show up for sale for 500 only needing a head gasket( guy i met @ gas station got his 620 this way)

[Stoffregen Motorsports]

There are two types of car guys in the world: talkers and doers. Banzai is right, most jobs of this magnitude are never finished, and usually if they are finished, they look like crap or are scary to drive. As a fabrication guy myself, nothing bothers me more than seeing someone start a large project that I know will never get finished.

 

We should have an obituary section on this forum, for projects that died before they were finished.

 

But, I will say, if you're capable of doing the work and motivated enough to finish a large project like a body swap...go for it.

[GLUGS]

Ya, i kind of figured this would be to daunting of a task. But i was hoping that maybe the 620 and 720 were highly compatible... but its makes sense it wouldn't be something easy

also if i planned on a 620 why would i buy a Comanche, it looks very different. And almost identical to a 720

[Stoffregen Motorsports]

I think he was saying don't do all that work to get 4 wheel drive, just go buy a Comanche and be done. I like the idea of a swap better, as long as it will actually get done.

 

One difference between the two trucks is the steering column. The 620 uses a solid column that bolts to the steering box. The 720 uses a firewall mounted column and a separate shaft to the box. I like the thought of having a separate, exposed shaft, as it makes column or box removal easier and it also makes more room in the engine bay.

 

If you're going to do the swap, it will be best to start with a complete truck as a donor. It's always cheaper in the long run.

[datzenmike]

... it's also safer in an accident and the 720 has a spline that will slide or collapse. In an accident the 521 and 620 are for pole vaulting into the afterlife.

[hosestop@msn.com]

Wow I thought out here a short bed 4x4 with manual trans and 4cyl was kind of rare here in Cal.most were v6 KK.I guess will post up in No classifieds

[banzai510(hainz)]

I picked a Commanche as it is a small truck single cab parts ez to get. plus they have 6 cyl versions.

 

Here in washington 4x4 620s do pop up they need work which might be a better option.