6 speed and 3.9 rear end swap
im possibly getting a sweet ass deal on a 6 speed and 3.9 torsen out of an 03!
and my question is will the axles from my car directly bolt up to the 3.9 torsen out of the 03? my car currently has the 4.10 torsen! is there anything i need to know as far as the swap goes? |
Direct swap, but I'd avoid the T-F diff in general, and 03 diff in particular.
|
Originally Posted by Ben
(Post 499088)
Direct swap, but I'd avoid the T-F diff in general, and 03 diff in particular.
i know the six speed is a direct swap, i just have to modify the neutral and reverse wiring right! |
Originally Posted by WonTon
(Post 499091)
from what i have heard 6 speed plus 4.10 final gear = suck
i know the six speed is a direct swap, i just have to modify the neutral and reverse wiring right! I haven't got my 6 speed in yet so I can't give an opinion. |
Originally Posted by Ben
(Post 499088)
Direct swap, but I'd avoid the T-F diff in general, and 03 diff in particular.
Originally Posted by WonTon
(Post 499091)
i know the six speed is a direct swap, i just have to modify the neutral and reverse wiring right!
Originally Posted by djp0623
(Post 499094)
I think it depends on what you want. I thought Sav mentioned in a thread that the fastest car at one of the tracks he races has a 6 speed with 4:10 gear.
|
Originally Posted by RotorNutFD3S
(Post 499096)
Care to explain that one? Genuinely curious as to why...
Originally Posted by RotorNutFD3S
(Post 499096)
Yep, which is easy. And you know about keeping the engine/trans. plate and the 6-speed starter for your car.
Originally Posted by RotorNutFD3S
(Post 499096)
This is for being livable on the street, so lower RPMs at cruise is preferable.
|
would it be better to just go 3.6 if you are going to spend the money? Just try to get the six speed for a good deal, then buy a ring and pinion. That has been my plan. I just don't want to buy it until I have actually driven my six speed with the 4.10
|
Originally Posted by djp0623
(Post 499111)
would it be better to just go 3.6 if you are going to spend the money? Just try to get the six speed for a good deal, then buy a ring and pinion. That has been my plan. I just don't want to buy it until I have actually driven my six speed with the 4.10
|
Originally Posted by WonTon
(Post 499100)
ill be using the 6 speed starter right...(engine/trans plate)? im trying to remember what all we did when we assembled your car rip!
I'm referring to the thin metal plate that goes between the engine block and transmission, also has the grounding strap on it. The dipstick also attaches to it.
Originally Posted by WonTon
(Post 499112)
im not spending any money!!! :D ;)
|
Originally Posted by RotorNutFD3S
(Post 499116)
Yep, better to use the 6-speed starter than keep the 5-speed starter due to attachment differences. And it's there for the taking, so might as well.
I'm referring to the thin metal plate that goes between the engine block and transmission, also has the grounding strap on it. The dipstick also attaches to it. Can't beat a free swap. mmmm i love free upgrades! |
Almost every (or maybe every) 1.8 diff I've seen die of natural causes was an 03. Many were simply assembled wrong at the factory. I have posted pictures before.
Almost every LSD failure I've seen is a T-F, where the clutch breaks apart. 03 was the only year of the 3.909 T-F. Sounds like fail on top of fail to me. |
Originally Posted by Ben
(Post 499121)
Almost every (or maybe every) 1.8 diff I've seen die of natural causes was an 03. Many were simply assembled wrong at the factory. I have posted pictures before.
Almost every LSD failure I've seen is a T-F, where the clutch breaks apart. 03 was the only year of the 3.909 T-F. Sounds like fail on top of fail to me. |
im deff workin on getting the 6 speed!
moar info in regards to the 3.909 torsen diff please? |
You'll be fine with swapping everything over, don't worry. The 03 Torsen isn't the best of the OE options, but for what you're doing, you'll never notice the difference. Maybe down the road if you seriously get competitive in autoX or something you'll notice it's performance shortcomings, but until then.....
|
Someone buy my awesome 3.9 assembly with no axles. I am going to a 3.6 clutch setup.
|
Originally Posted by Doppelgänger
(Post 499139)
You'll be fine with swapping everything over, don't worry. The 03 Torsen isn't the best of the OE options, but for what you're doing, you'll never notice the difference. Maybe down the road if you seriously get competitive in autoX or something you'll notice it's performance shortcomings, but until then.....
if in the future i go for more power and other nonsence ill prolly do what rip did with his diff! |
Threads are hard to find, but if you search hard enough, you will find jems like these:
Differential going? - MX-5 Miata Forum Something fell out of my LSD diff. What is it? - MX-5 Miata Forum The common thread between the blown up 03 units is that they all seem to die with low miles on them, so if the particular unit you're looking at is higher mileage, it might be just fine. Kind of like the 97-00 thrust bearing failures; if it didn't pop by 40K, then it's probably not gonna (though some motors did give up the ghost around 100k) |
78,000 miles on this particular car.
|
|
all recorded failures have been 35k miles and below!
the unit im trying to get my hands on has almost 80k...........if there was a problem with it like the others that have been linked, wouldnt it have already failed? |
All times are GMT -4. The time now is 06:09 AM. |
© 2024 MH Sub I, LLC dba Internet Brands