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4l60e Interchange

lucky13

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lucky13 Enthusiast

lucky13

Posted
Posted

I just baught a 2000 4x4 yukon with a 4.8 and a 4l60e

the trans make a funny noise during the 1-2 shift

also the 1-2 shift seems kind late and soft

all other gears are ok and trans does not slip

truck has 160k

 

anyway i have a wrecked 99 awd astro with 90k

 

can i pull the trans out of the astro and put it in the yukon

 

gm list both trannys as having different part #'s

gm also list 3 different tranny part #'s for a 2000 yukon they list 4.8 5.3 and 6.0 as all having a different trans

 

whats the difference gear ratio??? shift points???

 

any way will the astro trans work in the yukon

and if not why not

thanks in advance

Schmids5.3l Senior Enthusiast

Schmids5.3l

Posted
Posted

I'm not too knowledgeable with 4x4/awd, but since the Yukon trans is 4x4 and the astro is awd it might have a different output shaft..but the output shafts should be swappable since their both essentially the same transmission.

norsemanberg Enthusiast

norsemanberg

Posted
Posted
The astro has a 4.3L V6 off the "Lt" 305-350 engine platform and the 4.8L is the "LS" two different engines and will not work.

 

 

If I'm reading it right he is asking about the transmissions, and if you are getting a 4l60e out of the van and installing it in the truck that had a 4l60e I don't see why it wouldn't work. Swapping transmissions really isn't all that hard so why not give it a try and see what happens. Just don't use the AWD transfer case.

redvett Senior Enthusiast

redvett

Posted
Posted

The two different engine platforms do not interchange, GM changed the bell housing and the offset between the bell housing face and the crankshaft face.

norsemanberg Enthusiast

norsemanberg

Posted
Posted
The two different engine platforms do not interchange, GM changed the bell housing and the offset between the bell housing face and the crankshaft face.

 

 

Well there you go! You learn something new every day! Thank you.

lucky13 Enthusiast

lucky13

Posted
  • Author
Posted
The two different engine platforms do not interchange, GM changed the bell housing and the offset between the bell housing face and the crankshaft face.

that the kinda info i was looking for

so why can't i just swapp bellhousings

redvett Senior Enthusiast

redvett

Posted
Posted

The input shaft may be different, the output shaft also & the wiring too. The Astro is a lighter duty than the Yukon. All the work to put an old transmission and have it fail is a possibility.

dorman68 Enthusiast

dorman68

Posted
Posted

I have access to a salvage yard interchange index. Here is a list of transmissions that will work for your truck.

 

SIERRA 1500 PICKUP 99-00 A.T.; 4x4, 4.8L

SILVERADO 1500 PICKUP 99-00 A.T.; 4x4, 4.8L

TAHOE 00 A.T.; Silverado style, 4x4, 4.8L

YUKON 00 A.T.; 4x4, 4.8L

 

Ident: KBD

4 spd. A.T., 4L60E, M30.

Pan has 16 bolts.

lucky13 Enthusiast

lucky13

Posted
  • Author
Posted

sorry for the hassel but if you look up a tranny for a 2000 yukon in the gm parts catalog

it lists 3 different part #'s

1 for if it has a 4.8 engine

1 for a 5.3 and 1 for a 6.0

 

but i am sure i could pull the 4.8 and dropp in a 6.0 with out any problem and keep the same tranny

i was just tring to find someone that knows for sure

thanks for all you help

redvett Senior Enthusiast

redvett

Posted
Posted

Each trans is built for each engine size and the 6.0L is a 3/4T and is a 4L80E not a 4L60E. Also make sure in those years 2000-01 that you have the transmission for that model year because they wont all bolt up because of the crank off set difference.

 

sorry for the hassel but if you look up a tranny for a 2000 yukon in the gm parts catalog

it lists 3 different part #'s

1 for if it has a 4.8 engine

1 for a 5.3 and 1 for a 6.0

 

but i am sure i could pull the 4.8 and dropp in a 6.0 with out any problem and keep the same tranny

i was just tring to find someone that knows for sure

thanks for all you help

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