Dana 20 gearing

What would be the cheapest and easiest fix for the 2:1 ratio, I would like to go with lower gearing. I'm assuming it would be cheaper and easier to go this route than change the R+P on two axles (3.73).

Josh

 

i did the bronco20/dana18 gear swap ( which gives you 2.46:1) using brand new d18 gears it was still only $200+-

 

The bronco thing is the cheapest I think.
Tranny swap to something with real low 1st gear is good but $.
The 3 to 1 or 4 to 1 tcase stuff is also $.
Changing the diff gearing with used R & P is an option. Lower $ than new gears.

 

Thanks for the input.
Josh

 

Is there anyone out there who makes an even lower ratio than th 2.43 to 1 from a D18?

 

Yeah, Tera makes a 3.15 kit. The 2.43 "kit" for the 20 cheaper because it mixes Dana 20 and Dana 18 gears, and only needs the one special gear from the Bronco I6 Dana 20. The 3.15 kit is available for the 18 and the 20.

 

If it were me (and it will be soon) I'd go with the Tera Low 3.15:1 kit. It runs right at $800.

 

There's also a Dana 300 that came in one year of Scouts that has the Texas pattern (ie same as the Dana 18 or 20). The Dana 300 can be outfitted with Tera 4:1 gears, which doubles your crawl ratio compared to the stock Dana 20. The word is out though, and they are difficult to find or expensive, or both.

 

Didn't know the year, but I recall it's the one with the square headlights.

Lynn, you sure the decimal point is right on that number? 27K seems like the entire Scout II production to me ... maybe not.

 

$650-$800?For a gear or two!? I might as well save up and get an Atlas. The whole thing will be new and have a lower gear. You can get a whole NOS Dana 20 for less than $500.

 

try herm for the terra low. think the 18 gears in 20 case is the way to go.

 

well, like i said... idid the 18 gear conversion and i put in a t-18A with the 6.32:1 first gear. the diference is night and day to what i origanly had ( d-20 stock gearing, t15 with 3 somthing first gear) i did it ALL for under $500

 

It's probably right. I did a little research ... The jeeptech.com page says 30K for the Scout II in 1980, and similar vehicles have similar production numbers. With that many vehicles produced and the present condition of Scouts in general, they should be obtainable. I saw one of them for sale on a Scout board for $750, so I'd guess between $500 and $1K would be expected - comparable to Tera gears (that's probably what sets the prices).

 

Your best bet is to find a scout d300. Good luck!

The problem with the d20 is its texas bolt pattern. To convert to anything else is gonna require an adapter. Usaully about $500. So dropping in an atlas gets even more expensive. Just putting a jeep d300 is also an expensive conversion.

So to go lower your best bets are basicly convert to 2.46 gears or tera 3.15 gears or regear your axles. I doubt 2.46 gears would be low enough for me on the trail (of course I compare this to my yota thats 100-1 ). So it looks like I'll be buying some tera gears in the future. Had a quote off the pirate board from DC 4wd of under $550 shipped to my door.

Anyone here actually running the tera gears in a d20? I've heard the d18 gears are noisy on the highway. I am curious if the d20 is the same even though its a centered rear output.

Kevo

 

Anyone have anymore info on converting the Bronco gears to dana 20? Part numbers/sources or write up? thanks