oh yea, you got a 4wd, i am not 100% sure this would work but they made autotrack cases for the LD2500, that would be the case to get ahold of cause i think it would just bolt/plug right in and work, that is if you have autotrack now.

if you have just the basic tcase weather it is electric or manual you would need to find a 2500case with the same electric or manual control. you do that and it will probably bolt right in. i have 2 cases here, one is an autotrack from a 1500 and the other is a HDmanual shift case, they casings are identical, the output shafts are the same. about 1/2 of the space inside the autotrack where the chain runs is taken up by the clutch pack, i think a HD case would have a wider chain.

 

::digs up old thread::

Sorry guys...I'm really looking into the 80 swap so I can spray the life outta my LS1. Has anyone gathered parts numbers, or made a complete list of what's needed? I've found a used NBS 2WD 80 for $1,000!

Is there a stock 80 crossmember that we could use to prevent making a "custom" piece?

So far, I can see that I need:

1) tranny
2) 80-specific flywheel *PN?
3) crank spacer *PN?
4) wiring harness adapter/programming from Speartech
5) HD 80 tranny mount *PN
6) LD tranny cooler-to-radiator lines
7) 80 front yoke (new drive shaft?)
anything else? Maybe we could get this or another thread made into a sticky?

 

A stock 4L80 crossmember from a RCLB or ECSB 2500LD should bolt right into the 1/2 ton frame without issues, driveshaft yokes *might* be different between the 60 and 60 on the NBS trucks (they were not on the OBS trucks)

 

The yoke is different the same as a TH400.

 

Now lets say you bought an Lq4 out of a 01 HD/4l80e? this Lq4 then came with the factory spacer? ...would you still be able to put the 4l60 on with the spacer on there?::not knowing::: would this cause you to blow front pumps like nobodys business...........?

 

The spacer stays off for the 4l60 and is installed for the 4L80

 

but where does this spacer go? like if i bought a motor and with w /4l80 on it then it had the spacer on at some point....right? well then could i posibly have installed my 4l60 wiht the spacer still on it? im just trying to find a reason why my front pumps keep going on me......

 

Here's the spacer and longer bolts that you use WITH the 4L80E. Do not use it with the 4L60E.

 

2OO1 and earlier 6.0s have a thicker flange on the rear of the crank because they all came with a 4L80E.On later model 6.0s the flange is thinner to accomadate a 4L65E in the SS or Escalade.They came up with the spacer to accomadate the 2500 which still uses a 4L80E or for replacements for earlier 6.0s.

 

I have the spacer if anyone needs it pm me.