turbo and NA 4eat direct swap?
Posted: Wed Feb 07, 2007 7:17 pm
Are the turbo and NA auto trannies a direct swap?
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turbo and NA 4eat direct swap?
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Posted: Wed Feb 07, 2007 9:41 pm
no
Posted: Thu Feb 08, 2007 12:30 am
No - OK, why not? 
Posted: Thu Feb 08, 2007 1:59 am
different final ratios, the N/A is typically 4.11, the turbos are 3.9 therefore the rear differencial will not be correct.. so you would need to put the NA diff in also... along with that the clutches are different also
Posted: Thu Feb 08, 2007 2:02 am
doah! i said clutch... at least I didn't edit out.... 
Posted: Thu Feb 08, 2007 3:34 am
I think the reason he's asking (since hopefully I'm getting his '94 SS 4eat and rear diff from him) is with the rear diff and 4eat, what else is required to swap an 94 SS 4eat into a 1990 4eat NA legacy...
Posted: Thu Feb 08, 2007 5:58 am
What he said.voodoochylde wrote:I think the reason he's asking (since hopefully I'm getting his '94 SS 4eat and rear diff from him) is with the rear diff and 4eat, what else is required to swap an 94 SS 4eat into a 1990 4eat NA legacy...
Posted: Thu Feb 08, 2007 6:05 pm
If I recall properly the TCU is different but they are interchangeable. Aside from that they should be a direct interchange provided you change the rear diff also.
Posted: Thu Feb 08, 2007 7:17 pm
torque converters are different.
the flexplate which is bolted to the crank is different between turbo and N/A.
the flexplate which is bolted to the crank is different between turbo and N/A.
Posted: Thu Feb 08, 2007 10:14 pm
yes, those also... sorry, forgot that about the torque converter/flex plate.