404 Pinion Ratio - Pirate4x4.Com : 4x4 and Off-Road Forum

PuckerFactor · 12-13-2007, 02:24 PM

I'm building a buggy with Taridon 404's.I have to get my LS1 computer reprogrammed.
The programmer need to know the pinion ratio and the final gear ratio.

I'm running a 4L60e and 42" Irocs if that matters.
I have counted the times the pinion turns to one revolution of the tire and it seems low. I thought 404 had 7.56:1 ratio. I counted about 3.75 pinion revolutions to one tire revolution.
Help anyone.
Thanks.

ZUKROVER · 12-13-2007, 04:15 PM

Pinion ratio 3.54

Portal ratio 2.13

Total 7.56

PuckerFactor · 12-13-2007, 07:06 PM

Quote:

Originally Posted by ZUKROVER

Pinion ratio 3.54

Portal ratio 2.13

Total 7.56

Thanks for the info...

RiKMiL · 12-23-2007, 07:41 PM

Quote:

Originally Posted by PuckerFactor

I'm building a buggy with Taridon 404's.I have to get my LS1 computer reprogrammed.
The programmer need to know the pinion ratio and the final gear ratio.

I'm running a 4L60e and 42" Irocs if that matters.
I have counted the times the pinion turns to one revolution of the tire and it seems low. I thought 404 had 7.56:1 ratio. I counted about 3.75 pinion revolutions to one tire revolution.
Help anyone.
Thanks.

Id bet you were counting the turns of a front diff. My point is if you count the pinion vs. the ujoint you would come up with your numbers. Try waiting on the tire to turn one revolution.

YELLOWHOBO · 01-16-2008, 09:57 PM

Recently I read that there were 2 R/P set-ups for the mog 404. Both were 3.54:1. I just got one of each and was wandering which set-up is stronger?

Does anyone have any info on this?
Were these different for a reason?
Different years?

weps · 01-16-2008, 10:19 PM

had one apart last night, it was 7-25 (teeth)
I posted this info a long time ago, but cant find it now.
I have run both of the teeth combos and never broken either.
I am guessing different years..... I did'nt even think to look at the build tag either...

12-13-2007, 02:24 PM	#1 (permalink)
PuckerFactor Registered User Join Date: Apr 2004 Member # 29358 Location: Denton, Texas Posts: 110	404 Pinion Ratio I'm building a buggy with Taridon 404's.I have to get my LS1 computer reprogrammed. The programmer need to know the pinion ratio and the final gear ratio. I'm running a 4L60e and 42" Irocs if that matters. I have counted the times the pinion turns to one revolution of the tire and it seems low. I thought 404 had 7.56:1 ratio. I counted about 3.75 pinion revolutions to one tire revolution. Help anyone. Thanks.

12-13-2007, 04:15 PM	#2 (permalink)
ZUKROVER Registered User Join Date: Apr 2003 Member # 18798 Location: FRESNO, CA Posts: 291	Pinion ratio 3.54 Portal ratio 2.13 Total 7.56 __________________ IT'S NOT VERY BIG AROUND, BUT IT SURE IS SHORT!

01-16-2008, 09:57 PM	#5 (permalink)
YELLOWHOBO Registered User Join Date: Oct 2006 Member # 81150 Location: Clovis, CA Posts: 961	Recently I read that there were 2 R/P set-ups for the mog 404. Both were 3.54:1. I just got one of each and was wandering which set-up is stronger? Does anyone have any info on this? Were these different for a reason? Different years? __________________ PTM Racing #37 Craig Thompson Spotter: Red Dragon 2010 CalRocs Champion 2011 Cal-Neva Champion ________________ Trail-Gear Inc. Expedition Imports TK1 Artworkz Any7 Tom Woods

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01-16-2008, 10:19 PM	#6 (permalink)
weps Registered User Join Date: Feb 2002 Member # 10290 Location: Northeast Indiana Posts: 1,206	had one apart last night, it was 7-25 (teeth) I posted this info a long time ago, but cant find it now. I have run both of the teeth combos and never broken either. I am guessing different years..... I did'nt even think to look at the build tag either...