OBS to LSx conversion

[Wagonbacker9]

I am putting a 5.3 into a 91 ext cab 2wd, now in order to keep the old drive shaft and new transmission in the proper location will i need 1" set back mount plates or standard mount plates?

I don't know from exp yet, but everything I've read indicates that the LS is 1" shorter, so 1" setbacks are needed to keep the trans in its current location.

I have a question about hooking up a 4l60e to my 89 k1500 transfer case. Will I have any issues or will it bolt right up? Or would finding a 2000+ transfer case be a better idea and would my drive shaft still work it I have to swap Trans cases?

NP241c bolts up.

What all will need to be done on the harness if I'm swapping into a 1980 K10? (mainly switches such as brake ignition etc?)
Also will the stock T case from an 87 Suburban bolt on to the 4l80e?

Anyone?

Brakes have nothing to do with the engine... for wiring info look on lt1swap.com. As for tcase what trans and tcase are in it now?

[T-Stark]

Dirty dingo sbc to ls1 adjustable mounts

I have my factory drive shaft

[nosrex]

well at twice the price the dirty dingo mounts arent really something i was after. They will run alot more too having them shipped up to canada. i dont mind having the tranny move a bit as it will be out anyways(using the new unit not the 700r) as long as i can use my factory driveshaft.

So maybe its better to ask if i should use the factory location transdept mounts or the 1" set back mounts from them.

[Wagonbacker9]

What have people done for transmission cooler lines? I was thinking I could just use the factory ones but after looking, it sounds like that may not be an option. I have access to a donor truck so if the factory 99+ lines are usable I can try to grab them.

[okieraptor]

What are the differences between a 96-98 4l60e's? Do they have the same plugs?

[Mickeymotormount]

What are the differences between a 96-98 4l60e's? Do they have the same plugs?

I believe the plugs are the same. I can't see why the wiring wouldn't be the same but I would certainly check first to eliminate any potential problems.

[Mickeymotormount]

What have people done for transmission cooler lines? I was thinking I could just use the factory ones but after looking, it sounds like that may not be an option. I have access to a donor truck so if the factory 99+ lines are usable I can try to grab them.

I ended up removing my old adapters out of my trans and installed them into the 99 trans. The male threaded part are metric in both but the female part that receives the cooling line was different. In order to keep my original cooler lines, I simply swapped fittings out of my old trans and put them in the new one.