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I'm new to the LS game, I'm down in New Zealand where a lot of the GM parts can be a bit rear, apart from what we got out of Aussie.
I'm in the process of building a club/winch challenge truck out of an old surf (4Runner?).
I am currently modifying the rear of a 2wd 4L60e to mate up a Isuzu bighorn transfer (cheap option to get it going for now).
The problem is the long 2wd output shaft. It means the transfer has to stand off from the transmission by 170mm (somewhere around 7 inches).
My question is how much shorter is the 4wd output shaft that the 2wd shaft? and do I need the reducer wheel of the 2wd shaft for the computer to control the transmission?
My Partner is currently in the USA so I could have her bring a shaft back if it is worth it. (not very available in my Country).
Any help would be greatly appreciated. 1st Gen LS out of a VT commodore Sorry about the metric. its all I have.
Just Googling "4l60e 2wd output shaft versus 4wd shaft" I got this: The main difference between a 4L60E 2WD and 4WD output shaft is their length. The 4WD output shaft is significantly shorter than the 2WD shaft, approximately 13.25" vs. 20".
Now that might be too short as you likely need to make an adapter plate. Please explain why you wouldn't just use a 4WD 4L60E.
I would use a 4wd 4L60e, but the Chances of finding one in my country means the price would probably be prohibitive. Holden didn't produce any 4wd LS vehicles that I am aware of.
We don't really have Silverado's or big trucks like that here. Just Hilux's and Rangers.
Even an older LT-style 4WD 4L60E as far back as 1996 is easy to bolt up to an LS engine and electrically compatible with 1998 to 2006 PCMs.
Check around and tell us what you can find.
BTW - I might move your thread to the Automatic Transmission section, especially if your questions go outside my knowledge range.
What about the Adventura or Crewman UTE AWD setups? I know nothing about them other than AWD Holden, and that they were used in modified form as the basis for the HSV Coupe4.
It looks like you can get a 4x4 output shaft on Ebay for 20-40 us dollars. It should be cheap enough to ship it to NZ. I changed a TH350 output shaft years ago wasnt too bad.
Ah, but swapping the output shaft on a 4L60E requires a lot of disassembly and starts a slippery slope toward a complete rebuild. For one, the teflon rings on the input shaft will have to be replaced (unless nearly new), and with the input drum out, you are only one snap ring away from replacing the likely worn 3/4 clutch. Also, the servo needs to be removed to release the band so that the reverse drum comes out. And then the band sometimes releases at the other end and you have to remove the valve body to correct that. With every removed part there are more seals and gaskets which are likely too old to reuse. Finally the output shaft is held with a recessed snap ring which basically requires a special snap ring plier. Reinstalling the input shaft requires a strong and steady hand and often 5+ minutes of patience.
Not trying to dissuade the OP, just pointing out it is not trivial and requires removing most of the internals.
Ah, but swapping the output shaft on a 4L60E requires a lot of disassembly and starts a slippery slope toward a complete rebuild. For one, the teflon rings on the input shaft will have to be replaced (unless nearly new), and with the input drum out, you are only one snap ring away from replacing the likely worn 3/4 clutch. Also, the servo needs to be removed to release the band so that the reverse drum comes out. And then the band sometimes releases at the other end and you have to remove the valve body to correct that. With every removed part there are more seals and gaskets which are likely too old to reuse. Finally the output shaft is held with a recessed snap ring which basically requires a special snap ring plier. Reinstalling the input shaft requires a strong and steady hand and often 5+ minutes of patience.
Not trying to dissuade the OP, just pointing out it is not trivial and requires removing most of the internals.
Yes and the problem is I have a problem and will attempt to rebuild the box if I pull it apart, which it may need as I have no idea the condition of the box.
I believe the 4wd output may be too short and not leave me enough room to make an easy adaptor to the bighorn transfer.
The bighorn is probably not a long term transfer anyway as it may get changed in a couple of years as the truck develops (possibly into a winch challenge truck).
I will build the adaptor to suit the 2wd shaft for now and get the truck on the trails before the project gets too long and ends up as a shed ornament.
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