4:88 or 4:56? - Pirate4x4.Com : 4x4 and Off-Road Forum

dblue351 · 11-27-2001, 07:24 AM

I got a 91 bronco and i am getting new gears for it. I will be running 37 or 38 inch tires and was wandering what size gears to get. I want to still have some top speed like 75-80. So i was wandering if the 4:88 will be too much gear or if they will work out fine.

1uglyranger · 11-27-2001, 08:46 AM

If your 91 has an overdrive, then go for the 4:88's. You can still do 80 without revvin' the motor out....

Brian--

dblue351 · 11-27-2001, 11:34 AM

Yes i do have overdrive, so i guess the 4:88 will be it, i was just afraid they might be toooooo low.

CrazyHorse · 11-27-2001, 01:53 PM

with that size tire and an overdrive I'd be looking at a 5.38 as a minimum, possibly even deeper, as I have 5.38's going in my EB daily driver with 38.5 tsl/sx's and no overdrive

welndmn · 11-27-2001, 03:22 PM

4:11's and no OD in my bronco with 38's

a they took away some power, but thier is still pleaty, i plan on jumping to 4:88's as well

rokcrln · 11-27-2001, 05:23 PM

I am running 4.88's in my 73EB and I have 35" tires and a NV4500 w/OD so at 80mph I am at 3,000RPM. I would go with 4.88 and not any higher due to a weaker pinion gear. Just my $0.02

saf-t scissors · 11-27-2001, 05:40 PM

forget regearing... start praying that 8.8 doesn't split into 8 pieces when it sees your 38's.

Where's Rob? He's got those superior axles FS

Go 4.88

dblue351 · 11-27-2001, 10:22 PM

Quote:

Originally posted by sclemons
forget regearing... start praying that 8.8 doesn't split into 8 pieces when it sees your 38's.

Where's Rob? He's got those superior axles FS

Go 4.88

then i go 9 inch or bigger, build it bigger when it breaks thats my moto!

IronBenderII · 11-29-2001, 12:23 AM

Go 5.13's... Good highway speeds (with OD) and good low gears at the same time.

11-27-2001, 07:24 AM	#1 (permalink)
dblue351 Registered User Join Date: May 2000 Member # 1001 Location: Livermore, CA Posts: 872	4:88 or 4:56? I got a 91 bronco and i am getting new gears for it. I will be running 37 or 38 inch tires and was wandering what size gears to get. I want to still have some top speed like 75-80. So i was wandering if the 4:88 will be too much gear or if they will work out fine. __________________ [URL="http://www.wt4x4.net"]WT4x4.com[/URL] [URL="http://www.wt4x4.net/forum/showthread.php?t=352"]71 Bronco with stuff......[/URL] [URL="http://www.youtube.com/user/wt4x4videos"]Videos![/URL]

11-27-2001, 08:46 AM	#2 (permalink)
1uglyranger Pirate4x4 Addict! Join Date: Aug 2001 Member # 6576 Location: Oakley, CA Posts: 6,109	If your 91 has an overdrive, then go for the 4:88's. You can still do 80 without revvin' the motor out.... Brian-- __________________ Brian Whitford 711 Dysfunctional Rockcrawlers Rage 4th............ "safety is our #2 concern"

11-27-2001, 11:34 AM	#3 (permalink)
dblue351 Registered User Join Date: May 2000 Member # 1001 Location: Livermore, CA Posts: 872	Yes i do have overdrive, so i guess the 4:88 will be it, i was just afraid they might be toooooo low. __________________ [URL="http://www.wt4x4.net"]WT4x4.com[/URL] [URL="http://www.wt4x4.net/forum/showthread.php?t=352"]71 Bronco with stuff......[/URL] [URL="http://www.youtube.com/user/wt4x4videos"]Videos![/URL]

11-27-2001, 01:53 PM	#4 (permalink)
CrazyHorse Registered User Join Date: Feb 2001 Member # 3420 Location: Martinez, CA, USA Posts: 1,021	with that size tire and an overdrive I'd be looking at a 5.38 as a minimum, possibly even deeper, as I have 5.38's going in my EB daily driver with 38.5 tsl/sx's and no overdrive __________________ John Foottit 70 bronco, lightly modded Contact me for your custom Cabinetry Needs [URL="http://www.beniciacabinetry.com"][B]Benicia Cabinetry, Inc.[/B][/URL]

11-27-2001, 03:22 PM	#5 (permalink)
welndmn Well Done Man! Join Date: Mar 2000 Member # 398 Location: Bay Area, CA Posts: 17,434 Blog Entries: 3	4:11's and no OD in my bronco with 38's a they took away some power, but thier is still pleaty, i plan on jumping to 4:88's as well __________________ Mark 71 Bronco. 42's and bolt on goats. 47' CJ2a, 302, C4, 33's. 2012, year of the flat fender.

11-27-2001, 05:23 PM	#6 (permalink)
rokcrln Registered User Join Date: Jul 2001 Member # 5821 Location: Lost in my own head! Posts: 1,409	I am running 4.88's in my 73EB and I have 35" tires and a NV4500 w/OD so at 80mph I am at 3,000RPM. I would go with 4.88 and not any higher due to a weaker pinion gear. Just my $0.02 __________________ Buildem--Rollem--Tearem Apart--Get Rid of the Wife--And Start All Over! BRONCO BUGGY; dana44,35spln 9", 37's, 351W efi, C5full manual w/comp brk, atlass 5:1, fox 16" air's master craft rubicon's, full hydro, and a girl friend that loves to help.

11-27-2001, 05:40 PM	#7 (permalink)
saf-t scissors Registered User Join Date: Aug 2001 Member # 6733 Location: Raleigh, NC Posts: 1,168	forget regearing... start praying that 8.8 doesn't split into 8 pieces when it sees your 38's. Where's Rob? He's got those superior axles FS Go 4.88

11-29-2001, 12:23 AM	#9 (permalink)
IronBenderII Registered User Join Date: Sep 2001 Member # 6848 Location: Elk Grove, CA Posts: 1,878	Go 5.13's... Good highway speeds (with OD) and good low gears at the same time. __________________ 71 1-ton EB BITD 7200

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