Gears or engine? - Off-Road Forums & Discussion Groups
Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

Reply
 
LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 12-10-2001, 10:36 AM Thread Starter
Keyboard Implanted
 
Join Date: Aug 2001
Location: Vermont
Posts: 2,348
Thanks: 0
Thanked 0 Times in 0 Posts
 
Gears or engine?

I have all but finalized my plans for 4in of lift and 33 inch swampers in the spring. My YJ has a 4cyl and 3.73 ratio.

I would like to get some power back. I have an option of trying to swap a motor. (its just a matter of finding one) Or changing out the ring and pinion. With heavy 33s and a 4 cyl I like the Idea of 4.56.


Would I need to change cariers from 3.73 in a D30 and 35. And about how long would it take a shop to do this swap. I am looking at the cheapest option for now. Eventually they will both be changed.
Thanks for any help


91 YJ 2 inch lift new engine in the works.
"Because there is no reason not to"
Olin18 is offline  
Sponsored Links
Advertisement
 
post #2 of (permalink) Old 12-10-2001, 11:53 AM
**DONOTDELETE**
Guest
 
Posts: n/a
Re: Gears or engine?

Well how hard to you plan on using your jeep, you may not want to spend the money on a gear swap in these axles, if I were you I'd save up and deal with the lack of power now, then later find a stronger set of axles to swap. Are you sure the axles have 3.73's, most 4 bangers had 4.10's, if you got 4.10 you don't need new carriers but you will if you got 3.73's.

waiting on the 1-tons!
post #3 of (permalink) Old 12-10-2001, 03:05 PM
Wrangler88
Guest
 
Posts: n/a
Re: Gears or engine?

hey olin i thought yours is a stick? if so you've got 4.10's in the front and 4.11's in the rear.

(\/)ikey
Got Jeep?
Sponsored Links
Advertisement
 
post #4 of (permalink) Old 12-10-2001, 03:30 PM Thread Starter
Keyboard Implanted
 
Join Date: Aug 2001
Location: Vermont
Posts: 2,348
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Gears or engine?

Wrangler88 are you sure that all 5 spds. Came with the 4.10 or was that an option when new? I have never heard that befor, but if it is true, that is great. Won't need new cariers

91 YJ 2 inch lift new engine in the works.
"Because there is no reason not to"
Olin18 is offline  
post #5 of (permalink) Old 12-10-2001, 03:58 PM
I Do This For The Glory
 
JEEPN's Avatar
 
Join Date: Dec 1999
Location: Nobleboro, Maine
Posts: 7,958
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Gears or engine?

Even if you had 3.73's you wouldn't need new carriers as the carrier break on both axles is the same 3.54 to 2.73 and 3.73 and higher numerically.

Count on $130 per R&P and about $150 to install them, per axle. Add the install kit (usually $30), and that leaves $210 per axle. The install price may vary from a little as $100 to as much as $300 per axle though, depending on who you have do them.

JEEPN
Winter Harbor, Maine
'81 CJ-8 Scrambled, It's a Jeep, Chevy, IHC kinda thing!
'88.5 Zuki, 7" Lift, Locked, Swamped, Rolled, and just generally broken in right!
JEEPN is offline  
post #6 of (permalink) Old 12-10-2001, 04:06 PM
 
Join Date: Aug 2000
Posts: 4,282
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Gears or engine?

I would deal w/ the gears and tires untill you can swap in d44's or d60's, another option would be keep your d30 and adding 95 or later xj d30 shafts, they are 1 piece and have 297x u-joints (same as a d44) and then an 8.8 rear out of an exploder or build a super 30 up front (elusive posted about that a while ago) and a scout d44 in the rear. I would say 4.88's would be the best bet for wheeling abiltity there's a formulia to figure out what it will feel like w/ bigger tires and i think 4.88's and 33" swampers will probably put you back into your power band, though w/ a bigger engine it would be a major dog. Also do the gears your self, it's not that hard and is a good skill to have.

BarrelRoll

97 TJ

Wheel it or drive a minny van

Jeeper99xj is offline  
post #7 of (permalink) Old 12-10-2001, 04:17 PM
**DONOTDELETE**
Guest
 
Posts: n/a
Re: Gears or engine?

JEEPN, are you sure the carrier break is at 3.73, I thought it was at 3.92 and up, maybe that's the Dana 44. Oh well, to much crap to remember. He should have 4.10's though, I'm pretty sure all manuel tranny 4 bangers had them. IF you can find a 4.0 in good shape I say swap motors. I'd never spend the kind of money others do on a Dana 35.

waiting on the 1-tons!
post #8 of (permalink) Old 12-10-2001, 05:56 PM
I Do This For The Glory
 
JEEPN's Avatar
 
Join Date: Dec 1999
Location: Nobleboro, Maine
Posts: 7,958
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Gears or engine?

Yes, you're thinking of the D44.

JEEPN
Winter Harbor, Maine
'81 CJ-8 Scrambled, It's a Jeep, Chevy, IHC kinda thing!
'88.5 Zuki, 7" Lift, Locked, Swamped, Rolled, and just generally broken in right!
JEEPN is offline  
post #9 of (permalink) Old 12-10-2001, 06:47 PM
 
Join Date: Sep 1999
Posts: 2,006
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Gears or engine?

Jeepin is correct on the break 3;73 to 4;56 same carrier, and if you have a 91 4 banger YJ you have 4:10 gearing if it is stock. Thats the only way they came. With the YJ 4 cyl I doubt you will generate enough torque to snap any axles on the 30/35's even with the 33's.
GP'n

GP'n is offline  
post #10 of (permalink) Old 12-10-2001, 11:32 PM
 
Join Date: Mar 2001
Posts: 439
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Gears or engine?

what about a 1990 YJ, they switched a few things over from 90 to 91. My friend has one I'm just curious, what's the gears in that, it's a 4cyl 5spd, I can't see his being 4.10's with the powerband between 4000 and 3000rpm and running 235/75/r15's it seems to me like he's got 2.73's or 3.37's
Thanks
Chad

84 & 76 CJ-7's Give me a striaght six cummins diesel anyday. [email protected]
HuskyJeep is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome