need help ls swap with trans

[6084chevys]

i just purchased an ls motor 5.3 for my 84 square but the donor is a 4x4 and i have my truck on air ride what do i have to do to make that trans work please any help would make my headache go away and what do i need to make that swap work and the donor motor comes with every thing to fuel tank and pump to radiator electric fans the whole enchilada but iv'e never done this so if i could get some help that would be great .

[dman1982]

I'm not a pro, but my swap has a lot of the same questions you asked (I'm doing a 4x4 swap), you gotta be more specific on here as well tho...also check my post a lot of the same questions you asked I asked as well

[6084chevys]

That's funny you responded I was just reasons your thread
But yeah I get what you mean about the ?s your doing a 4x4 I'm not so
I don't need the transfer case so I would like to know what I have to do to make it work with out the transfer case I dont knot if that explained it better.

[andrewmp6]

Short answer sell the 4x4 trans and get a 2wd trans.

[6084chevys]

Ok another ? I payed $1500 for the donor truck how much do the 4x4 trans go for give or take the truck runs and drives with 90k miles on it the truck was rear ended and fliped to its side but drive train intact

[dman1982]

Originally Posted by andrewmp6

Short answer sell the 4x4 trans and get a 2wd trans.

Isn't the trans the same except the cover that goes over the tail shaft?

[dman1982]

Originally Posted by 6084chevys

That's funny you responded I was just reasons your thread
But yeah I get what you mean about the ?s your doing a 4x4 I'm not so
I don't need the transfer case so I would like to know what I have to do to make it work with out the transfer case I dont knot if that explained it better.

You also asked about fuel system and other stuff, you also need to do the harness, motor mounts, PCM, and a bunch of other random things, most I've asked already is what I was getting at...but my next swap is something 2 wheel drive

[6084chevys]

Ok so I do need a harness even if I use the one from the donor truck? What about oil pan? Do I need to change that?

[dman1982]

Yes, you still need the harness from the donor truck...depending on the year you may need a lot more...what year is the donor truck?...from the research I've done the oil pan should be fine (I'm not a pro but my oil pan worked on my swap...and haven't seen any issues on the c10's either), check out my post a lot of the questions your asking I've already asked...just click my profile and click on my post a lot of members have already answered and been waaaay helpful, sometimes it's hard to search and navigate here on this forum...and this site loves pics!

[nekkidhillbilly]

Originally Posted by dman1982

Isn't the trans the same except the cover that goes over the tail shaft?

no you have to pull it all apart to add the 2wd tailshaft full rebuild.

[dman1982]

Originally Posted by nekkidhillbilly

no you have to pull it all apart to add the 2wd tailshaft full rebuild.

Ya I'd seen a thread somewhere about it...like I said tho not a pro

[nekkidhillbilly]

be nice if was that easy. to op if your going to build the trans up though you could go through it. also you could use any 4l60e.

[6084chevys]

The donor truck is 2005 silverado z71 with a 5.3 but every thing I would need for the swap is there. I'll post some pics this week when i take it apart.

[dman1982]

make sure you take it apart somewhat carefully, I've been told and seen that a lot of guys cut the tac harness, make sure you don't cut it...i had to buy a tac module and pedal, but didn't have a harness (I'm new to the LS platform) and thought the wiring was in the harness...so i had to buy one

[andrewmp6]

Yeah to change a 4wd trans to a 2wd will take pretty much a rebuild.As far as what the trans is worth it depends which one it is and how many miles are on it.It could go for 50 bucks to 300 maybe more just depends on a lot and where you live.As far as replacing it get the same one it could be a 4l60 or a 4l80 figure out which one you have first.

[nekkidhillbilly]

Originally Posted by andrewmp6

Yeah to change a 4wd trans to a 2wd will take pretty much a rebuild.As far as what the trans is worth it depends which one it is and how many miles are on it.It could go for 50 bucks to 300 maybe more just depends on a lot and where you live.As far as replacing it get the same one it could be a 4l60 or a 4l80 figure out which one you have first.

5.3 only came in front of a 60e.

[MB84C10]

Worse case you can use your existing transmission.. need a spacer for flexplate and drill different holes to bolt up converter will need a electronic speed sensor tho

[nekkidhillbilly]

Originally Posted by MB84C10

Worse case you can use your existing transmission.. need a spacer for flexplate and drill different holes to bolt up converter will need a electronic speed sensor tho

the 60e? or the stock th350/700r4. rather have 60e.

[MB84C10]

Agree! But worse case you can make it work.. I'm sure a junkyard 2wd trans isn't expensive tho being its cali and you can actually find 2wd transmissions unlike here in maine where everything is 4wd lol