Tera low gears

[Viperwolf1]

Do these gear sets work with the NV3550?

They are replacements for the stock D20 gears so they will work with any trans you can adapt a D20 to.

 

[ManTruck]

Phil, 4x4groupbuy was the same price as Sams....$738.

 

[ManTruck]

Phil, the gears I had in mine were purchased in 2005 from TeraFlex at a mass buy price of I believe $650 at that time.

$738 seems to be reasonable.

 

[Jeff10]

Hey,

I am sold on the Tera Low gears. Moab this year was my first experience with them, and I am really pleased.

The biggest plus for me is that the Bronco has a BW T18 transmission. The stock transfer case gears made it difficult to stay out of 1st gear... it seemed like I was shifting up to 2nd, and then I'd need to stop (because 1st gear isn't synchronized) to drop back to 1st. With the Tera Low gears, I found that I could run between 2nd and 3rd gear most of the time. 1st gear was only for challenging obstacles. It worked out very nicely.

It would be great if TeraFlex would do the mass buy deal again... I would like to install that gear set in another case.

Jeff

 

[xcntrk]

Does your guys Teralow gears whine loudly while in low? I know they're straight cut gears and therefore are expected to be loud, but mine sound like I'm running a straightcut dog-box tranny or something... Sounds cool, but is definitely louder than the OE gears... Should I be concerned?

 

[Jeff10]

Hey xcntrk,

For what it's worth, when I'm in 4th gear, in low range, there is definitely some whining going on. I thought it must be the transmission; but, it doesn't whine when I'm in high. (I would also expect whining in any gear while in low range... I don't hear it, though (at least not at the same level).

I was wondering if I should be concerned, too.

Jeff

 

[xcntrk]

Hey Jeff, if you recall from the installation, the high range gears are helical cut for quiet operation. But the low-range gears are all straight cut for strength. The downside of straight cut gears are the noise. Tooth on tooth direct contact is loud.

My only concern here is that the OE gears are the same (straight cut for low) and didn't quite make the same noise as the teralow. Granted there's more teeth on the Teralow gears - maybe that's related.. I wouldn't say it's concerning, just noticeably different. Everything is working fine in low range otherwise....

 

[Jeff10]

Hey xcntrk,

You think they's quiet with a little break-in?

Jeff

 

[xcntrk]

Hey xcntrk,

You think they's quiet with a little break-in?

Jeff

I'll have to shoot a video and see if I can capture the sound. I also have bare floor pans (no carpet or insulation) so I hear "everything" coming from the drivetrain. Honestly I'm not too concerned about it - just more of an observation that they are louder than stock.

Here's a comparison: I had this old performance import with a 5 speed built tranny. Gears 1-4 were straight cut and therefore screamed louder than most superchargers! You can hear an example in this silly vid I shot while doing some street tuning... This is what straight cut gears sound like.
http://www.streetfire.net/video/subaru-speedo-build-video25l-20g-fmic-ewg_103601.htm

 

[70_Steve]

You think they's quiet with a little break-in?

No.

I just think of that whine as my reminder that I'm in low range...

 

[Bronco Junkie]

Does your guys Teralow gears whine loudly while in low? I know they're straight cut gears and therefore are expected to be loud, but mine sound like I'm running a straightcut dog-box tranny or something... Sounds cool, but is definitely louder than the OE gears... Should I be concerned?

Yes, mine are considerably louder than the stock gears.

 

[ransil]

Mine are loud too..

 

[707Bronk]

@Viperwolf - Did you ever find good pricing on the LOW20B?

I am looking into this myself. I am going to be calling Sams4x4 tomorrow morning to their pricing and shipping costs.

WH sells them for $824, and they are fairly close to me, so I might be able to make up some costs on shipping buying from WH.

Your thread seems to be the most recent, just wondering what you ended up doing.

 

[Viperwolf1]

Customer changed plans so I never purchased them. Sams had the best prices I could find.

 

[broncoitis]

Don't you have to modify the case in order to get the Terra Low gears to fit or something like that???

 

[Viperwolf1]

Don't you have to modify the case in order to get the Terra Low gears to fit or something like that???

No. Not on the Ford D20.

 

[matt w]

Well it is my 1 year anniversary this week since I have installed mine AND YOU helped me...I found that SAM's beat everyone else "delivered" last year!;D

 

[cracker]

I think I bought mine from Sam's Offroad as well. You might check into Rusty's Offroad, they have some good prices as well.

 

[Jeff10]

Hey,

Anyone found any good deals on the Tera Low gears?

I am thinking about rebuilding another Dana 20, and the low gears are so great in the '71 it's hard not to make the change to the lows when I do.

Thanks

Jeff

 

[okie4570]

Reviving an old thread here............... I see that these have gone up a bit at Sam's. $984.39.

Here's my question, what's the best way to determine if I've already got them installed? Or should it be really obvious? I've never run along side another 302 np435 to compare.