Aaah, straight-cut! The reverse gear in our Corolla is straight-cut, and it's definitely louder than the forward gears. Darn. Did all the gears make the same noise, or are some of them helical-cut?

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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

Helical gears make more noise when used backwards...

...straight cut gears are stronger (well they should be!) I'd be surprised if they were fitted to any TN gear box though - as that would have made it a lot more specialised and expensive. These little commercial vehicles aren't meant to last as long as they do - they're not as well built as say a Unimog.

I could be wrong about the TN gear boxes - I'm just going on the Ford Transit ethos => build it cheap and base it on as many high volume car parts that you can.

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

Some compacts do come with straight-cut reverse gears, though -- I'll ask next time I'm at the dealer. Well, I'll see... maybe Dr. Sternschnuppe knows? I hope they're helical-cut...

__________________
"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

I could be wrong but I would expect straight cut gears only if no synchromesh is used. I would expect it only in a tractor or a race car.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Apparently straight-cut gears are sometimes made with synchronizers -- see here. I kind of like the gear whine, but I could see it getting tiring for an extended period of time. Also, why would (yeah, I'm responding to DeliveryValve now...) first & second be straight-cut while the rest is helical-cut? Do the lower gears need more strength?

__________________
"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

First and reverse often don't have synchro especially on an older truck application. Newer trannies, like my six speed in my big dodge is six speed and all except reverse are synchro.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Yeah, I get the lack of synchronizers, but why would there be a mix of straight and helical forward gears?

__________________
"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

I'm only speculating, but I imagine the strength is needed to get a potentially loaded heavy vehicle going from a stand still. As soon as it gets up and going, strength in the gears are not that critical.


.

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1983 123.133 California
- GreaseCar Veg System

That makes sense. I won't be driving in the city that much, so I could probably live with that if the price difference is over $1000...

__________________
"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

Poking at your memory again, do you remember whether there were even jumps between all gears or whether there was a larger jump between 1st and 2nd than between the other gears?

__________________
"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

I wanna say it's first, second and reverse are straight cut as they were the loudest if I recall.


.

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1983 123.133 California
- GreaseCar Veg System