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 Re: Need to go slower
[Re: Ralph]
#952086
07/07/09 06:26 PM
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Joined: Jan 2000
Posts: 12,153
Web Wheeler
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Does anyone use the second T case as an over under box/
They have 15 and 20% over drive and under drive boxes for 2 wheel drive.
That would be pretty cool for four wheel drive. On some vehicles that is possible, but on Toyota, not. Why? High range (1:1) is just a direct coupling of the input and output shafts. No gears involved, so no way to change the ratio. Only option there is to put on a second transmission (in-line), some writeups on this over on the Pitae4x4 forum.
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Re: Need to go slower
[Re: Ralph]
#952087
07/11/09 05:31 AM
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Joined: May 2009
Posts: 177
OP
Wheeler
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Has anyone here simply added the lower gear to the transfer case?
I tried to run down the vin number today.
It seems I have a gear drive transfer case, according to the dealer.
And I believe I have 4.11 3rd members, if I'm reading the chart right.
Ralph
1991 Toyota 4x4 Standard Cab Pickup.
engnbldr cam and head.
Doug Thorley Headers
Home Made Cat Backs
30x9.5x15 BF Goodrich All-Terrain M/T KM2
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Re: Need to go slower
[Re: Ralph]
#952088
07/14/09 04:36 PM
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Joined: Sep 2003
Posts: 1,686
Body Damage is Cool
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Has anyone here simply added the lower gear to the transfer case?
Yes, Me. Got a deal on a transfer case with 4.7's. So, I currently run a single case with 4.7's. Holy Crap, you wouldn't believe the difference off road. I take obstacles nearly idling in first or second gear. One thing I do miss about the stock 2.28's, is basic trail riding around, between obstacles. The fastest my 4Runner can go, in 4 low, and 5th gear is approx 15MPH with the motor screaming with the 4.7's, but I'm keeping them.
85 4Runner - With NEW Marlin 4.7 Gears!! It's a whole new beast!
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Re: Need to go slower
[Re: Staceman]
#952089
07/15/09 04:24 PM
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Joined: May 2009
Posts: 177
OP
Wheeler
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I've been thinking about what you said and for me that's a little over the top.
I'm guessing I can do 45mph in low 4x4 now.
I'd like to do 30mph in low range 5th gear and about 1mph in low range 1st gear at 1500rpm.
Actually the 1mph in low range 1st gear at 1500rpm.
Is the most important part of this want.
Am I asking to much?
Ralph
1991 Toyota 4x4 Standard Cab Pickup.
engnbldr cam and head.
Doug Thorley Headers
Home Made Cat Backs
30x9.5x15 BF Goodrich All-Terrain M/T KM2
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Re: Need to go slower
[Re: Ralph]
#952090
07/15/09 04:35 PM
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Joined: Jan 2000
Posts: 12,153
Web Wheeler
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I've been thinking about what you said and for me that's a little over the top.
I'm guessing I can do 45mph in low 4x4 now.
I'd like to do 30mph in low range 5th gear and about 1mph in low range 1st gear at 1500rpm.
Actually the 1mph in low range 1st gear at 1500rpm.
Is the most important part of this want.
Am I asking to much? Well, to do all of the above would fit a dual case setup likely with lower than stock gears in the rear case. You can play with all the numbers below: - http://www.4crawler.com/4x4/4LoCalc.shtml#FindMPH
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Re: Need to go slower
[Re: 4Crawler]
#952091
07/15/09 06:08 PM
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Joined: Sep 2005
Posts: 970
Rock Warrior
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I think the overall consensus will be that the most versatile setup (assuming manual tranny) is as above, dual cases w/ 4.7s in rear case. That gives you options of 1x, 2.2x, 4.7x, or 10.3x. But also most expensive route (extra case + adapter + gearing etc).
With 200+ Billion electrical parts, the world most complicated machine is inside your own skull.
Question Reality.
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'89 Rnr DLX "SR4.5", 32s w/ 5.29 locked f/r blah blah
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Re: Need to go slower
[Re: RatLabGuy]
#952092
07/16/09 12:20 AM
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Joined: Apr 2002
Posts: 3,568
Roll Me Over
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Ralph Have you seen this Toyota 4x4 Parts need $ now add on Sac craigslist? He has a dual cases for sale w/a set of 4.7 gears. Not sure what your willing to spend or how desperate he is, but you could get a good deal.
More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed
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Re: Need to go slower
[Re: Snowtoy]
#952093
07/17/09 04:57 AM
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Joined: May 2009
Posts: 177
OP
Wheeler
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I caller and they have not returned my call, it's been 24 hours.
A stock transfer case low ratio is 2.8 to 1.
So if you have 2 transfer cases with 2.8 to 1 in series does that give you a 5.60 to 1 final drive ratio?
Plus a 2.8 to 1 option.
Ralph
1991 Toyota 4x4 Standard Cab Pickup.
engnbldr cam and head.
Doug Thorley Headers
Home Made Cat Backs
30x9.5x15 BF Goodrich All-Terrain M/T KM2
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Re: Need to go slower
[Re: Ralph]
#952094
07/17/09 05:54 AM
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Joined: Jan 2000
Posts: 12,153
Web Wheeler
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I caller and they have not returned my call, it's been 24 hours.
A stock transfer case low ratio is 2.8 to 1.
So if you have 2 transfer cases with 2.8 to 1 in series does that give you a 5.60 to 1 final drive ratio?
Plus a 2.8 to 1 option. Stock gear driven case is 2.28:1: - http://www.4crawler.com/4x4/4R_TechInfo.shtml#TransmissionSo double that (2.28 * 2.28) = 5.2:1
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Re: Need to go slower
[Re: 4Crawler]
#952095
07/18/09 05:45 AM
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Joined: Apr 2002
Posts: 3,568
Roll Me Over
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I have 2 stock cases in my'91 w/22re w/5.29 gears and 35's. While it is a night and day difference between single and double cases, I found I wouldn't mind having it lower still. If you can find a set w/4.7's it would be the better way to go. I wanted 4.7's, but couldn't pass up the deal I found on stock cases. I will likely upgrade to 4.7's eventually, either that or find a turbo tranny w/the lower first gear.
Swapping in 4.56 diffs will also help w/going slower off road.
More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed
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