300 pumpkin in a 400
#1
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Couple quick questions.
Will a 2004 gs300 rear end pumpkin direct bolt with my 1999 gs400.
I understand I will be going from 3.26 to 3.92 gears.
Will my speedo and tach be off? Or is this electronic and the computer will adjust?
How easy to swap?
Will a 2004 gs300 rear end pumpkin direct bolt with my 1999 gs400.
I understand I will be going from 3.26 to 3.92 gears.
Will my speedo and tach be off? Or is this electronic and the computer will adjust?
How easy to swap?
#2
Lexus Fanatic
iTrader: (1)
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Speedometer is read off the ABS wheel speed sensors, so the gauge will read the same. You have to swap the companion flange(the one that goes to the driveshaft) on the 2 differentials. They are both 3 bolt flanges, but the V8 flange is like 1-2mm bigger. Very hard to tell by eye, but it will have to be swapped or else the driveshaft won't bolt up correctly. Once the flange is swapped, everything goes back in the same way it came out. I would also recommend you using loctite on the threads on all of the bolts. The last thing you want is for those to come loose on the highway. If you plan to do this swap, let me know. I will buy your old GS400 diff from you after you do the swap.
#7
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Speedometer is read off the ABS wheel speed sensors, so the gauge will read the same. You have to swap the companion flange(the one that goes to the driveshaft) on the 2 differentials. They are both 3 bolt flanges, but the V8 flange is like 1-2mm bigger. Very hard to tell by eye, but it will have to be swapped or else the driveshaft won't bolt up correctly. Once the flange is swapped, everything goes back in the same way it came out. I would also recommend you using loctite on the threads on all of the bolts. The last thing you want is for those to come loose on the highway. If you plan to do this swap, let me know. I will buy your old GS400 diff from you after you do the swap.
and sure ill hook you up with the old one
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#8
Intermediate
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Acceleration in "general"- even though the 0-60 time might be the same or WORSE, b/c of the extra shift- will def be better though, right? How much of a difference in the 1/4 mile, you think?
#9
Lead Lap
iTrader: (4)
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Wow...That's hard to believe. Around 25 mph less than with the 3.27 gears...That's a lot!
Acceleration in "general"- even though the 0-60 time might be the same or WORSE, b/c of the extra shift- will def be better though, right? How much of a difference in the 1/4 mile, you think?
Acceleration in "general"- even though the 0-60 time might be the same or WORSE, b/c of the extra shift- will def be better though, right? How much of a difference in the 1/4 mile, you think?
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