Transmission swap

258,673 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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CHEVYLOVER1999
  • MEMBER
  • 2 POSTS
Will a 1998 4l60e transmission fit in my 1999 Silverado? Need to know before a buy.
Feb 18, 2019 at 1:43 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good morning,

They both need to be four wheel drive. Make sure of that first.

Look at the electrical connector on the transmission form the body and make sure it is exactly the same.

If they are the same then good. You will be good to go.

Roy
Feb 18, 2019 at 7:41 PM
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CHEVYLOVER1999
  • MEMBER
  • 2 POSTS
They are both 4x4 will their be any difference in the trans wiring harness?
Feb 20, 2019 at 3:51 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
You will need to compare the harness plug at the transmission from your old one to the replacement. They must be the same.

Roy
Feb 20, 2019 at 8:34 PM
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