I second the motion, all in favor .......
Transfer case re-gearing (1 Viewer)
- Thread starter NielsC
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I second the motion, all in favor .......
Fine.
Let's see just how many people here are going to get this re-gear done.
A few already
@moab cj5 is a great candidate, his 80 has a fresh set of 4.55's and rebuilt axles with 33's but he's going to 35's and wants to get a little lower in high range and low range, the t-case gears are a fantastic option for him.
I'm going to, so that's at least 1 person !
lumbee1
Native American
Are there underdrive options greater than 1.1 available?
Not that I'm familiar with. I was working with a Japan based vendor to flesh out the potential of a gear set that offered 23% UD in high range but I've not had much steam on the project in nearly a year and the costs were going to be somewhat unrealistic. Might be something I pick up on down the road when time prevails.
has anyone got a 'too long, didn't read' version of where this debate is up to now?
Maybe use an example of someone whom has 35" tires and stock gearing that is looking at re-gearing the transfer case or the f&r diffs?
Preferably without the emotion.
Maybe use an example of someone whom has 35" tires and stock gearing that is looking at re-gearing the transfer case or the f&r diffs?
Preferably without the emotion.
orangefj45
Supporting Vendor
We have sold and/or installed a total of roughly 20 OD and UD high range gear sets so far. The results have been great and the customers are happy with the gears.
These components are still
More or less in their infancy as far as market saturation is concerned, but with more and more end users modifying their 80 and 100 series cruisers for Offroad usage and word about these gears getting out, they'll become more popular, especially in conjunction with the 3.1:1 low range gear set.
We installed our first set of UD gears in a customers diesel 80 almost 4 years ago. He runs 35s with 4.88 gears in the diffs and wanted taller high range gears as well as lower low range gears since he drives his 80 at least once week. He also drives it to Rubicon, wheels the trail and drives it back home.
As mentioned earlier, we have several OD, UD and 3.1:1 low range gear sets in stock.
Georg @ Valley Hybrids & Cruiser Brothers
Shop 209-475-8808
Georg@cruiserbrothers.com
These components are still
More or less in their infancy as far as market saturation is concerned, but with more and more end users modifying their 80 and 100 series cruisers for Offroad usage and word about these gears getting out, they'll become more popular, especially in conjunction with the 3.1:1 low range gear set.
We installed our first set of UD gears in a customers diesel 80 almost 4 years ago. He runs 35s with 4.88 gears in the diffs and wanted taller high range gears as well as lower low range gears since he drives his 80 at least once week. He also drives it to Rubicon, wheels the trail and drives it back home.
As mentioned earlier, we have several OD, UD and 3.1:1 low range gear sets in stock.
Georg @ Valley Hybrids & Cruiser Brothers
Shop 209-475-8808
Georg@cruiserbrothers.com
lumbee1
Native American
Assuming 315's and stock 4.11 diff gears.
Transfer case gears 4.521:1 - slightly under stock ratio
Differential gears 4.56:1 - almost identical to stock ratio
Differential gears 4.88:1 - above stock ratio
4.88 diff gears are the most popular option because they put the Cruiser deeper into the power band and mitigate the weight of the larger tires.
All three options are expensive and close to the same price.
I wouldn't say they're close to the same price once you factor in installation. Transfer case gears are easy enough to change in your garage without anything too specialized. Setting up a differential on the other hand is quite a bit more specialized and typically not something most people on this forum would be capable of doing in their own garage without a not insignificant investment in job-specific tools and time spent learning.
@orangefj45 we spoke about the 10% UD HR (two gear set) a while ago, and you said you wanted more experience / testing with it before you felt comfortable selling it that way
Have you been able to work on it some more ? the cost savings of the 2 gear set vs the 3 gear set makes this option very appealing
Thanks !
Have you been able to work on it some more ? the cost savings of the 2 gear set vs the 3 gear set makes this option very appealing
Thanks !
A few already
@moab cj5 is a great candidate, his 80 has a fresh set of 4.55's and rebuilt axles with 33's but he's going to 35's and wants to get a little lower in high range and low range, the t-case gears are a fantastic option for him.
Yes sir! I will be doing this, maybe even this year. As stated, once I go to 35's, I will want deeper gearing. Since the axles were recently built, I don't want to reopen them to swap gears, AND i want a lower low range. The 10% UD gears, with the 3:1 low range in the Tcase is exactly what I am looking for.
My only hangup on ordering is if I do a part-time kit. I don't want to open the tcase more than once if I decide i want part time in the future, so I have to decide if i want to go that route before I pull the trigger on gears.
orangefj45
Supporting Vendor
Yes we've installed 4 sets since; 2 UD and 2 OD and they're working perfect; as expected and predicted.
Georg @ Valley Hybrids & Cruiser Brothers
Ps: we have the part time kits in stock as well.
Cool, info on high-range and low-range gears here:
YWST: Low Range T-Case Gear Sets for the 1980-2007 Cruisers
Remind me, was losing ABS your hang up there? If so I've got an option for that too. Info on our part-time kits: Back in stock: 80 Series Part-Time Kits
lumbee1
Native American
I was quoted $1435 for diff gears installed in my thirds if I brought the thirds to the shop. I was given a quote higher than that for TC underdrive gears for high and low range. There are some additional costs to removing birfs from the axles so that puts the price closer to each other.
orangefj45
Supporting Vendor
I am totally on board with your solution to ABS, as that was certainly one of my concerns, but your solution would totally work for me to resolve that.
My hangup is wanting to do away with AWD in favor of 4WD. I need more education on the Part Time kit and how it works, but I understand (and I admit I may be totally wrong in my understanding, which is why i need more education, but I haven't taken time to research yet) is that the Part Time kit removes the center diff, so you operate like a traditional 4WD.
I like the idea of AWD if my wife were to drive the 80 in the snow. If I could do the part time kit, but lock the hubs in and have the Center diff work as usual, great! I am in to do the Part Time kit too. However, if the Part Time kit removes (or disables) the center diff, and you have a traditional 4WD after, my wife would have to engage the front.
May seem like a small issue to some, but for me it is a concern. I need to decide if that is something I give up BEFORE i tear into the tcase. Like many, i don't want to open the case for gears, then decide later I want the Part Time Kit and have to do it again.
iptman
SILVER Star
The US 80 was designed to be a full time 4WD vehicle (not AWD). I would guess the people who've done a true part time conversion (not just installed selectable hubs) here on MUD is in the 5% or less range. And these people know exactly what they're doing and have a specific performance reason for why they're doing it (or they're just trying to be the cool kid on the block
). BTW, AWD is a typical designation for vehicles with a single transfer case ratio. 4WD is used for vehicles with a transfer case that has selectable high and low output ratios.
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Fwiw It does in fact remove the center diff. Agreed the 80 is quite capable of lasting a long time and driving around the world with the full-time case. I think the better way to look at the PTC is less wear/tear on the birfs (such as chromo options), front driveshaft and ability to limp off a trail with a broken front end. Fuel savings will be argued as long as the effects of tires on t-case gear ratios
E-Locker or open/ARB/Detroit/other?
We are ~$1100 for two loose diffs built with 4.88's, all new bearings, etc. $1250 if you have e-lockers as bearings are more expensive. Put them in a bucket and send them our way. Shipping is $50-75 per/diff each way so that may may your local shop the logical choice. Our diff guy has done hundreds of Toyota 3rds for us, sometimes 4-5 a week, he's an 80 and 100 guy too so there is that
