Crawl Ratio Poll

[MiniSimp]

What is everybody's crawl ratio?

I'm at 84:1 and hopefully getting slower after I buy some Marlin Crawler (http://www.marlincrawler.com/htm/transfercase/transfercase.htm) 4.7:1 gear sets.

To calculate crawl ratio: (1st gear ratio)*(Transfer Case Low Ratio)*(Ring & Pinion Ratio)=Crawl Ratio

Mine is 3.95 x 2.28 x 2.28 x 4.10=84:1

[Cebby]

I think mine *will be* 159:1. I am assembling an A340F auto with duals (4.7's in the rear) and 5.29 gears.

2.804 x 2.28 x 4.7 x 5.29 = 158.95:1

Apparently for an auto trans, this is going to be super low.

[AxleIke]

91:1

30.2 feet per minute @1000 RPM

[neliconcept]

4x4.56x5 = 92:1

[Albuquerque Jim]

4Runner
3.83 (First Gear) x 2.566 (Stock case) x 4.7 (Marlin) x 4.30 (Gears) = 199:1
:flipoff:

F-Toy
3.95 (First Gear) x 2.28 (Stock case) x 4.7 (Marlin) x 5.71 (Gears) = 242:1
:tongueout:

[paddlenbike]

I lose:
3.83 (first gear) x 2.566 (stock t-case) x 4.10 (rear diff) = Not low enough

[EWAYota]

Stock x Stock x Stock = Stock

[Intrepidyota]

3.95*4.7*5.29= 98.2

I am on 38's and I am fairly happy with this. NE wheeling frequently involves lots of wheel spin. I just got the 5.29's, I was previously on 4.10's which had me at 76.1:1. If I need/want to go lower I will throw in dual cases, but for right now I am happy.

[04 Rocko Taco]

ALL STOCK
(1984 4Runner 5speed, 22R)

3.93 * 2.28 * 4.10 = 36.73

37:1

.....*cries*

[Duffil]

99.69:1

[elripster]

auto=infinite... or something like that.

Frank

[UKMyers]

223.1 baby! Marlin Dual Ultimate with 5.29's

[neliconcept]

im stilll debating on a 2.28:1 front reduction box, which would put me at 215:1 or somewhere around there. my prob is my freakin gastank.

[Intrepidyota]

im stilll debating on a 2.28:1 front reduction box, which would put me at 215:1 or somewhere around there. my prob is my freakin gastank.


Not wanting to move the gas tank is all that kept me from running dual tranmissions. :( Just didn't want to deal with the hassle right now.

[neliconcept]

well according to MC and inchworm it adds 8.5 to 9 inchs to drivetrain, i have 10.2 inchs between the case and my gastank, but i dont think that is enough due to drivetrain torque and it may end up hitting the tank. may not though ? dunno

[SAR_Squid79]

2000 Tacoma 4WD-Converted-PreRunner
Automatic ECT Transmission with Inchworm adapter and "Lefty" T-Case with 5.0:1 Low Range:

Ratios

http://img442.imageshack.us/img442/913/crawlratioid1.jpg (http://imageshack.us)

4-Hi

http://img70.imageshack.us/img70/609/crawlcharthcy2.jpg (http://imageshack.us)

4-Lo

http://img229.imageshack.us/img229/1198/crawlchartlob5.jpg (http://imageshack.us)

http://www.offroaders.com/tech/mph-crawl-ratio.htm

[DHC6twinotter]

Muuahaha....I got everybody beat!

2.804 x 0.0 x 3.90 = 0.0


:tongueout:

[neliconcept]

lol naw you are just sitting at 1:1 Dan

where i used to be

[DHC6twinotter]

So I guess that puts me at 11:1 then. Still have everybody beat! :D

[Elvota]

217:1.

5.29 gears, R150 tranny mated to dual cases with a 4.7 in the back and 35" tires.

Incredible control and lot's of fun. :thumbup:

[4runnerchevy]

If it hasn't been posted yet, heres a link to Marlins old calculator.

http://www.marlincrawler.com/java/getratio_calc.html

[Intrepidyota]

3.95*4.7*5.29= 98.2

I am on 38's and I am fairly happy with this. NE wheeling frequently involves lots of wheel spin. I just got the 5.29's, I was previously on 4.10's which had me at 76.1:1. If I need/want to go lower I will throw in dual cases, but for right now I am happy.


Sold my 5.29's, bought a marlin mc07-r10 yesterday. :clap:

3.95*2.28*4.7*4.10= 173.5:1 :D

[4runnerchevy]

3.059 x 4.7 x 4.88 = 70.161224 (I need every decimal I can get). I crawl with an auto so I don't notice the lack of dual cases.

[SLC97SR5]

'84 Flatbed: 3.93 x 4.7 x 4.10= 75.7
This is on 30" MTR's so it feels pretty slow.


'97 4Runner: Auto x 2.57 x 4.56= 45.7
This is with 285's

[AxleIke]

Amending mine

3.95x2.28x4.7x4.88

206:1

Crawl speed at 1000 RPMs= 40 feet per minute.

[bflooks]

just figured it out... assuming the w56 and the w59 tranny's have the same ratio...


223.916178