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What is the hertz frequency of the vibration?
Get a real angle finder, take the rear driveshaft out, set the car on stands so the suspension is loaded and level. Put the angle finder on the pinion flange and on the front driveshaft. Adjust until they are within 1 degree of parallel, with the pinion pointing down if anything.
The transmission output shaft also needs to be within 1 degree of these measurements right? If I do need to adjust the pinion angle what is the easiest way to do so? Wedges under the rear spring? Kind of clueless, never worked on suspension before other than replacing springs.
The transmission output shaft also needs to be within 1 degree of these measurements right? If I do need to adjust the pinion angle what is the easiest way to do so? Wedges under the rear spring? Kind of clueless, never worked on suspension before other than replacing springs.
Sounds like you t5 guys should start looking into another transmission solution tbh
Sounds like you t5 guys should start looking into another transmission solution tbh
alternatively: don't take a junkyard transmission, throw it behind a noisy engine, align the drivetrain with your iPhone and then expect to it to behave like a modern car.
Brand new t5s suck as well. Haha
I'll disagree. My transmission isn't noisy, my car is though. T5z from modern driveline with probably 8k miles on it.
My big issue with the other boxes I see people grabbing is the gear ratios all suck. I'd rather have a bit of a heavy shift than a stupid short 1st and an over-overdrive top gear. I think gearing is really overlooked here, it has a huge impact on the real-world "quickness" of a car.
I did grow up driving SAABs though, so I have no particular obsession with shifter feel
Couple points of disagreement here:
1. I know of several brand new T5Zs that were delivered with incorrectly set shaft bearing preload. If you didn't check for the magic .005" preload number you may want to pull it and check. Most of the noise coming out of my gearbox is load dependent which indicates less than perfect gear mesh.
2. If your shifter feels heavy and not precise and super nice, you have the wrong shifter These transmissions don't shift like Hondas, but the throws and effort should not be much worse at all. Then again, the positioning and length of your lever plays a big role in this.
3. Ratios suck if your powerband is mismatched. Right now my 3.35 gearbox is way too tall with a 3.73 gear. The JK40C may actually be better suited. Then again dropping it into 2nd at 55 mph and not shifting into 3rd until 79 mph can be fun too, but only if I'm in the mood to tempt fate with the local police department.
My big issue with the other boxes I see people grabbing is the gear ratios all suck. I'd rather have a bit of a heavy shift than a stupid short 1st and an over-overdrive top gear. I think gearing is really overlooked here, it has a huge impact on the real-world "quickness" of a car.
The 3.35 boxes (or the nissan 6 speed) don't suck as long as you have an engine that doesn't have a crappy diesel-like powerband in front (cough 8v)