Big diff. going from 3.07 to 3.54 gears?

JayJEEPguy · 09-28-2004, 11:06 AM

I would like a little more of my power back...after going to 33's, my Interstate travelling has suffered because we have TONS of hills around here.

My '89 is running the stock 3.07 gearing. I would like 4.10's, but can't afford them. However, I think I can get my hands on a set of 3.54 axles out of another '89 very cheap (almost free).

Would I notice a difference with the 3.54's, or would it not be worth the hassle of changing the axles?

What are your thoughts, gents?

93Sahara · 09-28-2004, 11:18 AM

I would say you won't notice much. Hold out for at least 4.10s I'm running 4.56s and a tire a little over 32" and I love it.

**94YJ_FL** · 09-28-2004, 12:04 PM

Better than nothing. If you're doing the work yourself, then I say go for it. You can throw the 3.07's back under the other Jeep and re-sell it if needed. If you're paying someone else to do it, the cost-reward isn't high enough IMHO.

CanukYJ · 09-28-2004, 01:58 PM

If you can change axles yourself it -might- (depending on a local deal you can dig up) be easy to get 4.10's for the front axle and then find a 8.8 with 4.10's in it already. So then you only have to re-gear 1 axle and will have removed the 'weak link' d35. But that depends on if you can find an 8.8 cheap or not. No matter what you do right now, I would highly suggest you don't bother re-gearing the d35 as it's investing into something not worth it. Another option might be to scour for a junked 4cyl YJ (with the 5 speed stick) those all came with 4.10's and would bolt up. I know your question was about something else but I figured I'd give some insight into the bigger issue. hth

JayJEEPguy · 09-28-2004, 02:11 PM

CanukYJ, your idea sounds like a good plan. However, that requires MONEY.

I can probably get the 3.54-geared axles for FREE. All it would require is unbolting the entire rear-ends, swapping them, and putting it back together. This is something that can be done relatively easily, too.

I did find a set of 4.10-geared rear-ends from a 4-banger, but I don't have the cashola to pay for them.

TSEJEEPERS · 09-28-2004, 05:59 PM

You are talking about doing the front and rear both right? Heck if it is free what the heck. You probably will not get 5th gear back though.

ncjeepinyj · 09-28-2004, 07:43 PM

Hey man, i just sent you a PM, but just in case you check here first i just took 4.10 gears out of my 95 and put in 4.88's. I wouldnt mind getting rid of these cheap if you are interested. You can either PM me or email me at nccurious2000@yahoo.com.

JayJEEPguy · 09-29-2004, 08:00 AM

Quote:

Originally Posted by TSEJEEPERS

You are talking about doing the front and rear both right? Heck if it is free what the heck. You probably will not get 5th gear back though.

Heh. Who said I don't have 5th gear? Hahaha I still use it on the flats and mild hills. The big or long hills is where I struggle. I figured the 3.54's would help me out just a little bit, but every little bit counts.

ncjeepin, I'd love to take you up on the 4.10's, but I didn't want to pay for someone to set-up the installation. With the full axles, I could just swap them in a weekend. Thanks anyway.

weasel1996 · 09-29-2004, 08:15 AM

Hey this is a great question. (not trying to steal your thread) but I am sort of in the same situation. I have a 95 YJ (4.0L with 3.07) stock and am going to 33s but I am really worried about my power loss. I know to expect some loss but what actually it will be "concerns me". Are you at point where the power loss is really a pain, and do you have the 4.0 or 2.5?

I have thought about swapping out the axles (3.07 to 4.10) to gain it back but that requires more $$$ and junkyard searches. Do you know if any YJ will work as a bolt in system if you make sure its a YJ and 2.5L with 4.10gears?

09-28-2004, 11:18 AM	#2
93Sahara Registered User Join Date: Jun 2003 Location: Lancaster Pa Posts: 213 Profile Gallery Classifieds My Jeeps	I would say you won't notice much. Hold out for at least 4.10s I'm running 4.56s and a tire a little over 32" and I love it. __________________ 97TJ, 31s, BB <---- current project, 93 YJ Sahara, Lifted, Locked, and Sold 02 VW GTI 1.8T ---His 04 Pontiac Vibe ---Hers

09-28-2004, 12:04 PM	#3
94YJ_FL Senior Member Join Date: Oct 2003 Location: Denver, CO Posts: 616 Profile Gallery Classifieds My Jeeps	Better than nothing. If you're doing the work yourself, then I say go for it. You can throw the 3.07's back under the other Jeep and re-sell it if needed. If you're paying someone else to do it, the cost-reward isn't high enough IMHO. __________________ '94YJ - 350 Vortec - SM465 - 4:1 D300 - D60/14B - 102" WB - 42 Iroks

09-28-2004, 01:58 PM	#4
CanukYJ Registered User Join Date: Sep 2003 Posts: 2,335 Profile Gallery Classifieds My Jeeps	If you can change axles yourself it -might- (depending on a local deal you can dig up) be easy to get 4.10's for the front axle and then find a 8.8 with 4.10's in it already. So then you only have to re-gear 1 axle and will have removed the 'weak link' d35. But that depends on if you can find an 8.8 cheap or not. No matter what you do right now, I would highly suggest you don't bother re-gearing the d35 as it's investing into something not worth it. Another option might be to scour for a junked 4cyl YJ (with the 5 speed stick) those all came with 4.10's and would bolt up. I know your question was about something else but I figured I'd give some insight into the bigger issue. hth __________________ My jeep has only ever killed 3 things, a cat, a deer, and my wallet. What's the problem officer? 1992 Red YJ. Lifted, locked, and loaded with beer (Disclaimer: This doesn't mean said driver endorses drinking and driving, please enjoy alcohol responsibly and do not operate any vehicle of any kind, thank you....) Thanks to the price of gas here ($4.25 a gal) I just bought a mountain bike, 0" of lift, 0" of travel, MT's, locked rear axle, oh yeah, it's the sh#$.

09-28-2004, 07:43 PM	#7
ncjeepinyj Registered User Join Date: Aug 2004 Location: Mooresville NC Posts: 1,077 Profile Gallery Classifieds My Jeeps	Hey man, i just sent you a PM, but just in case you check here first i just took 4.10 gears out of my 95 and put in 4.88's. I wouldnt mind getting rid of these cheap if you are interested. You can either PM me or email me at nccurious2000@yahoo.com.

09-29-2004, 08:15 AM	#9
weasel1996 Registered User Join Date: Sep 2004 Location: New York Posts: 33 Profile Gallery Classifieds My Jeeps	Hey this is a great question. (not trying to steal your thread) but I am sort of in the same situation. I have a 95 YJ (4.0L with 3.07) stock and am going to 33s but I am really worried about my power loss. I know to expect some loss but what actually it will be "concerns me". Are you at point where the power loss is really a pain, and do you have the 4.0 or 2.5? I have thought about swapping out the axles (3.07 to 4.10) to gain it back but that requires more $$$ and junkyard searches. Do you know if any YJ will work as a bolt in system if you make sure its a YJ and 2.5L with 4.10gears?