Changing gears

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08-24-2009 | 12:18 AM

johnferg69

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Joined: Aug 2009

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From: Texas

Year: '91

Model: Cherokee

Engine: 4.0

Changing gears

What all do I need to do to change gear ratio to 4.56 if I run 33".
D30 in front D35 rear with 242 t-case

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08-24-2009 | 12:21 AM

winston427

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Model: Cherokee

If you currently have stock 3.55 gears, you will need new carriers, ring and pinion set, and master install kits (bearings and seals).

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08-24-2009 | 12:28 AM

Jeep450r

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Model: Cherokee

I personally wouldn't put that much money into a turdy-five. I would upgrade your axle first.

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08-24-2009 | 12:45 AM

johnferg69

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From: Texas

Year: '91

Model: Cherokee

Engine: 4.0

with what? a 44?

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08-24-2009 | 12:46 AM

winston427

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Model: Cherokee

Quote:

Originally Posted by johnferg69

with what? a 44?

Or a Chrysler 29 spline 8.25, or a Ford 8.8

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08-24-2009 | 12:49 AM

Jeep450r

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Model: Cherokee

Quote:

Originally Posted by winston427

Or a Chrysler 29 spline 8.25, or a Ford 8.8

Or a 9 inch, 14 bolt, or dana 60.

If I were you, I would go with a 29 Spline 8.25 (direct swap), or a Ford 8.8 out of a 95+ explorer with disks.

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08-24-2009 | 12:54 AM

winston427

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Model: Cherokee

One good thing about the 8.25 in either 27 or 29 spline version is that you do not have to change the carrier to go from 3.55 to 4.56 gears like you will with a D30, D35, or D44.

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08-24-2009 | 12:56 AM

johnferg69

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Junior Member

Joined: Aug 2009

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From: Texas

Year: '91

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by Jeep450r

If I were you, I would go with a 29 Spline 8.25 (direct swap), or a Ford 8.8 out of a 95+ explorer with disks.

The 8.8 shouldn't be hard. What vehicle do I look for to ****** a 8.25 out of? And what mods would either one need to fit under a XJ?

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08-24-2009 | 01:00 AM

winston427

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Model: Cherokee

You can find the 8.25 under an XJ and it is a direct bolt in. The only thing you will need to change with it is the driveshaft. The 8.25 has a longer pinion than the D35 so the DS is just a little shorter.

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08-24-2009 | 01:04 AM

#10

johnferg69

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From: Texas

Year: '91

Model: Cherokee

Engine: 4.0

Oh Ok so hit the junk yards and look for a XJ with a 8.25 and snag the DS too!! Thanks. I was under the impression that the D35 was a better axle than the 8.25.

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08-24-2009 | 01:24 AM

#11

Abovetimberline

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From: Chico,ca

Year: 89

Model: Cherokee

Engine: 4.0

A 29 spline 8.25 is alot better,but a 27 spline is better but not that much other than the axle tubes being a bit bigger,if you have time look for a D44.

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