I have a 98 OBS truck with a 4.3 vortec. I just purchased a 03 5.3 engine for it. My current drivetrain has a 4L60e from the factory? will I need to install adapter plates to make that transmission work with the new motor? I have heard both ways I just want to know for sure. and if so where can I get the plates that I hear about?
Josh
Yes, you will need the spacer and longer bolts or hughes makes a converter extension to slip over your factory torque converter to the crank.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
which is better and where can I get them at?
either is fine, i prefer the extension and longer bolts available from GM dealers such as CrateEngineDepot.com or SDParts.com
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
I went there and found this
Transmission Adapter Kit 19154766 - Crate Engine Depot
But it seems to be the reverse? is this right?
Josh
That would be needed to put a trans that was behind a GenIII motor behind a GenI motor, so yes the reverse of what you're doing...Originally Posted by hellfire_studios
You need this
LS1 Flexplate Spacer 12563532 - Crate Engine Depot
and these
LS1 Flexplate Spacer Bolt 12563533 - Crate Engine Depot
I reused the the stock flexplate on my 6.0L (same as 5.3L).
Thats it
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
how many bolts?
Six.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
count the holes
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