1993 4L80e with 1989 NP241 HD?

[BigBlockBurby]

So my previous suburban is totalled, and being parted out. I also picked up a 1989 Suburban V2500 (for free). Needs a trans. My 4L80e is sitting here. with full wire harness, and ECM. I smell a swap. My questions.

1) What is required to adapt the Passenger drop NP241 currently attached to the TH400 to the back of my 1993 4L80e? I mean adapters, parts, suppliers, etc etc. Im going to completely rebuild both the transmission and the transfercase before install. I need to know what parts I need to include and change to bolt these two together, working properly in my truck.

1.5) Bolting the trans/t-case in

2) If anyone knows how far back percisely to move the trans cross member back from stock THM400 location to 4L80e with NP241HD position.

Also, the transfercase IS the transfercase that came in the truck, the transmission is from a 1993. So please someone tell me what I need to make this bolt up correctly and normally. Also some help with the transfercase shift linkage and the trans linkage when switching to floor mounted B&M shifter.

I cant stress this enough, no other board can answer, I need instructions and parts list to matte a 1989 passenger drop NP241HD transfer case to a 1993 4L80e transmission.

Thanks in advance for the responses guys!

[68 TT]

Originally Posted by BigBlockBurby

So my previous suburban is totalled, and being parted out. I also picked up a 1989 Suburban V2500 (for free). Needs a trans. My 4L80e is sitting here. with full wire harness, and ECM. I smell a swap. My questions.

1) What is required to adapt the Passenger drop NP241 currently attached to the TH400 to the back of my 1993 4L80e? I mean adapters, parts, suppliers, etc etc. Im going to completely rebuild both the transmission and the transfercase before install. I need to know what parts I need to include and change to bolt these two together, working properly in my truck.

1.5) Bolting the trans/t-case in

2) If anyone knows how far back percisely to move the trans cross member back from stock THM400 location to 4L80e with NP241HD position.

Also, the transfercase IS the transfercase that came in the truck, the transmission is from a 1993. So please someone tell me what I need to make this bolt up correctly and normally. Also some help with the transfercase shift linkage and the trans linkage when switching to floor mounted B&M shifter.

I cant stress this enough, no other board can answer, I need instructions and parts list to matte a 1989 passenger drop NP241HD transfer case to a 1993 4L80e transmission.

Thanks in advance for the responses guys!

Did you ever get anywhere with this swap?