I wonder where the number 336 came from.
I hope this magic number does include the transfer case high range ratio.
I hope this magic number does include the transfer case high range ratio.
Very true. No clue I found that formula years ago when re-gearing another vehicle. I did some research via the ole inter web and it appears 336 represents fixed values including distance. Just found out now that that equation applies to vehicles with a trans ratio of 1:1. Which is every vehicle I’ve regeared. Being that disco 2s have .73 4th gear would mean rpm would be lower. Learned something new every day. I thought d2s where 1 to 1 4th gear. Back to the drAwing boardI wonder where the number 336 came from.
I hope this magic number does include the transfer case high range ratio.
Also, factor in 0.72:1 4th gear ratio of 4HP22/24; and an option of having 1.4:1 high range ratio LT230.Very true. No clue I found that formula years ago when re-gearing another vehicle. I did some research via the ole inter web and it appears 336 represents fixed values including distance. Just found out now that that equation applies to vehicles with a trans ratio of 1:1. Which is every vehicle I’ve regeared. Being that disco 2s have .73 4th gear would mean rpm would be lower. Learned something new every day. I thought d2s where 1 to 1 4th gear. Back to the drAwing board
Or just pin the liners.I you ARE going to rebuild it, make sure you have the top hat liners installed - properly, from someone who knows what they're doing, not Skeeter's Machine Shop down the street. No offense to Skeeter, but you know what I'm sayin'.
It is cheaper overall, and less work, even if you order a case from Ashcroft.I’ll look into the transfer case ratio change. Isn’t that really expensive relative to re-gearing diffs though?
From Ashcroft: rebuilt LT230 with 1.4:1 high range 495 UKP +s&hThese go for 1700 to 1800 and up from what I have seen.
What size tires?There was a thread a while back discussing rpm and gear ratios. I'm running 4:12 with a built 4.6 and have no problem on the interstate. Somewhere in that thread I listed rpm to speed.
With 4:12's I have no regrets.
285/75-18 Nitto Ridge GrapplersWhat size tires?
Still a far cry between ~800 and 1700 for the case. And I assume Ashcroft cases are all ready to go as well.UKP. UK pounds? That's over 600 and then shipping from the UK, way over 700 total. What's the door to door cost?
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The 1700 for the case was from a reputable shop in the states and they are all ready to go, gears, seals, minus the HD cross pins.
Still a far cry between ~800 and 1700 for the case. And I assume Ashcroft cases are all ready to go as well.
From Ashcroft: rebuilt LT230 with 1.4:1 high range 495 UKP +s&h
From Great Basin Rovers: 3.9 front gearset $349.95 + 3.9 rear gearser $349.95 = 10 cents short of 700 bucks.
Labor - up to you; local shop charged me recently 5 hours of labor for removal and installation of a transfer case.
I could never install a TrueTrac in less than 2 hours, all taken into consideration; last time three weeks ago took 2.5, and it was the rear. Front takes longer, even if you don't remove the axleshafts, and these times do not take into account setting pinion depth, only ring gear backlash.
There is an argument that you don't get a "lower low" with 1.4 high-range LT230: true, you don't. But personally I've broken enough axleshafts and CV joints with existing gearing not to want to go lower - if you do, factor in the price of HD axleshafts. It is a good investment in any case.
Yes.That GBR price is just the R&P kit though, not complete diffs right? Youd still need to set them up yourself or pay someone to.