• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' the posts that you read.

Swapping 2010 ranger rear axle on 89 ranger


Nez'sRanger

Active member
Joined
Oct 6, 2018
Messages
201
Reaction score
54
Points
28
Location
Los Angeles, CA
Vehicle Year
1989
Make / Model
Ford
Engine Size
2.9L V6
Transmission
Manual
I have a 1989 4x4 ranger with 3.73s (obviously, a 7.5"). I'm considering the options on a rear axle swap that will both strengthen the rear end, and give me rear discs. With the digging I've done so far, I think my purposes will be met by a 2010 rear axle swap. maybe an 8.8 with discs and the same ratio (for now).
What is required to do this? Are there any brackets/mounts that need welded or moved? Will I need to use 2010 shocks and leaf springs, or are mine compatible with the new axle?
How about the axle shaft? Is the bolt pattern the same, or do I need to get a different axle?
I would appreciate ebrake help too...
Thanks in advance! You guys are awesome!
 


Rock Auto 5% Discount Code: 4FF3E9EEA14805 Expires: October 1st, 2020

PetroleumJunkie412

2.9 Mafia
Supporting Member
TRS 20th Anniversary
Joined
Oct 31, 2018
Messages
6,079
Reaction score
4,336
Points
113
Location
Pittsburgh, PA
Vehicle Year
1988
Make / Model
Ranger
Engine Size
2.9l Trinity
Transmission
Manual
2WD / 4WD
4WD
My credo
Give 'yer balls a tug. Fight me.
2010 spring plates and u bolts are completely different. May need a different driveshaft as well.
 

Ramcharger90

Well-known member
Article Contributor
V8 Engine Swap
Joined
Feb 11, 2019
Messages
2,129
Reaction score
917
Points
113
Location
N/A na
Vehicle Year
1990
Make / Model
Ford Ranger
Engine Type
V8
Engine Size
306, Bcam,
Transmission
Manual
2WD / 4WD
2WD
You could just get a 31 spline 8.8 with disc brakes from a 98ish explorer and move the spring perches to the proper angle. Thats basically what I did with my 90 2wd. I didn't even move the spring perches either.
 

sgtsandman

Aircraft Tank Diver
Forum Moderator
Supporting Member
U.S. Military - Active
TRS 20th Anniversary
Joined
Mar 11, 2017
Messages
4,217
Reaction score
2,249
Points
113
Location
Aliquippa, PA
Vehicle Year
2011 & 2019
Make / Model
Ford XLT & FX4
Engine Size
4.0 SOHC & 2.3 Ecoboost
2WD / 4WD
4WD
Tire Size
31X10.5R15 & 265/65R17
My credo
I sniff fuel for a living. Don't judge me!
The speed and wheel sensors are setup differently on the truck you have and the 2010/2011. You would be better served to pick an axle from an earlier truck. I can’t remember when the configurations changed but either someone will post that knows the difference or you can check the tech section. I believe ‘89 had the speed sensor in the axle. Later models used that same hole for the ABS. I think.
 

scotts90ranger

Well-known member
RBV's on Boost
Joined
Feb 28, 2001
Messages
4,540
Reaction score
294
Points
83
Location
Dayton Oregon
Vehicle Year
1990, 1997
Make / Model
Ford
Engine Type
2.3 (4 Cylinder)
Engine Size
2.3 Turbo
Transmission
Manual
2WD / 4WD
4WD
Total Lift
6
Tire Size
35"
Yes, the speed sensor for the RABS on an '89 is on the carrier but that's all it's used for. An '89 likely uses a yoke for the rear driveshaft instead of the flange they started using in '90, but I think my '89 chassis had a flange, I don't remember doing anything when going to the Explorer 8.8...

That said, going to a disc brake Explorer axle isn't too hard: find a '95-01 Explorer with the gears you want, while at the junkyard grab an extra passenger side soft line from the caliper to the hard line on the axle to use on the drivers side as well as leaf spring plates from a '86 to '96 F150 or Bronco, grab the U bolts if they're in good shape and the configuration you are going for, go to the parts store and get two flare nuts (I think they're 3/8" fine thread) and a double flare tool if you don't have one, get some leaf spring perches or spring under adapters for an F150. From there it's pretty much just assembly, if you are lowered or 2 wheel drive double check the drive shaft length as the 8.8" pumpkin is about an inch longer. Put the extra passenger side soft line on the drivers side, cut the center of the hard line where it needs to be to match the stock Ranger soft line then flare the two ends.
 

JMF661

Active member
Joined
Feb 6, 2020
Messages
258
Reaction score
91
Points
28
Location
Bakersfield, California
Vehicle Year
1994
Make / Model
Ford Ranger XLT
Engine Type
4.0 V6
Transmission
Automatic
2WD / 4WD
4WD
Total Lift
Stock
Tire Size
31” x 10.5”
All these guys are correct. 3.25” ID ubolts will be required. Will probably need to be wedged to fix up the pinion angle. The later model 8.8 fx II, (maybe even standard 2010 8.8s?) rears seem to be clocked different than the early model ones.

It’s kind of tough to know for sure until you are bolting it up and can determine which components will and won’t work. at least that’s my experience with it.
 

Nez'sRanger

Active member
Joined
Oct 6, 2018
Messages
201
Reaction score
54
Points
28
Location
Los Angeles, CA
Vehicle Year
1989
Make / Model
Ford
Engine Size
2.9L V6
Transmission
Manual
Thanks guys! I'll have to put this mod on hold until I get a welder and torch, haha!
 

JMF661

Active member
Joined
Feb 6, 2020
Messages
258
Reaction score
91
Points
28
Location
Bakersfield, California
Vehicle Year
1994
Make / Model
Ford Ranger XLT
Engine Type
4.0 V6
Transmission
Automatic
2WD / 4WD
4WD
Total Lift
Stock
Tire Size
31” x 10.5”
What is your new axel out of?
 

bobbywalter

TRS Technical Staff
TRS Technical Advisor
TRS Banner 2012-2015
TRS 20th Anniversary
Joined
Aug 9, 2007
Messages
20,036
Reaction score
997
Points
113
Location
woodhaven mi
Vehicle Year
1988
Make / Model
FORD mostly
Engine Size
BIGGER
Transmission
Automatic
2WD / 4WD
4WD
Total Lift
sawzall?
Tire Size
33-44
My credo
it is easier to fix and understand than "her"
Somewhere 05 or so things change and near the end again with tc.
 

JMF661

Active member
Joined
Feb 6, 2020
Messages
258
Reaction score
91
Points
28
Location
Bakersfield, California
Vehicle Year
1994
Make / Model
Ford Ranger XLT
Engine Type
4.0 V6
Transmission
Automatic
2WD / 4WD
4WD
Total Lift
Stock
Tire Size
31” x 10.5”
It’s from a ranger FX II?
 

don4331

Active member
V8 Engine Swap
Joined
Sep 6, 2013
Messages
969
Reaction score
150
Points
43
Location
Calgary, AB
Vehicle Year
1999
Make / Model
Ford
Engine Type
V8
Engine Size
5.3
Transmission
Automatic
Hierarchy for your search:

VehicleProsCons
90-92 Ranger 8.8 LS, 3.73 ratioBolts right in; same width as existing axle28 spline axles, drum brakes
93-09 Ranger 8.8 LS, 3.73 ratioBolts right in28 spline axles, drum brakes, wider than original, Needs newer driveshaft*
03-09 Ranger FX4 Lvl 2 Bolts right in (needs FX4 Lvl 2 or F-150 u-bolts/spring plates), 31 spline axles, Torsen LS; larger axle tubesOnly available in 4.10:1 ratio - either need to re-gear rear or front in your case; wider than stock, drum brakes, Needs newer driveshaft*
95-05 Explorer/Explorer Sport/Explorer Sport Trac, 3.73:1 ratio31 spline axles, post '96 comes with disc brakes; larger axle tubesWider than any Ranger axle, spring mounts under axles - needs 2 drive's side Expo spring mounts for shocks and F-150 spring under axle kit or spring mounts relocated/shock mounts added, Needs newer driveshaft*
10-11 Ranger 8.8 LS 3.73 ratioDisc brakes; bolts right in.28 splines, but larger bearings so possible to install 31 spline axles, but they would need to be custom length, No speed sensor in differential; axle tube are 2-3/4" at axle and ends but larger in middle of tubes; Needs newer driveshaft*
F-150 8.8 LS 3.73 ratio31 spline axles, disc brakes; larger, thicker axle tubes5x135mm pattern, much wider (but it is rated for 3,800 lbs). Shortening tube and axles to Ranger width/ changing bolt pattern to 5x4.5" adds cost, Needs newer driveshaft*

Explorer versus FX4 Lvl 2 axles can swapped in order depending on your wrenching versus welding skills. My differential is composite of the FX4 Lvl 2 - 4.10:1 ratio and Torsen in Explorer housings/axles/brakes. I didn't need to play with lines to make connections, but maybe I was lucky.

*BobbyWalter has solution of using the front 1/2 of existing driveshaft to transfer case/rear 1/2 from 3rd gen to axle to create a working driveshaft without changing drive flanges. Note: This solution assume regular cab. If you have a SuperCab, you can use the rear section from gen 3 or gen 4 SuperCab.
 

Nez'sRanger

Active member
Joined
Oct 6, 2018
Messages
201
Reaction score
54
Points
28
Location
Los Angeles, CA
Vehicle Year
1989
Make / Model
Ford
Engine Size
2.9L V6
Transmission
Manual
Hierarchy for your search:

VehicleProsCons
90-92 Ranger 8.8 LS, 3.73 ratioBolts right in; same width as existing axle28 spline axles, drum brakes
93-09 Ranger 8.8 LS, 3.73 ratioBolts right in28 spline axles, drum brakes, wider than original, Needs newer driveshaft*
03-09 Ranger FX4 Lvl 2 Bolts right in (needs FX4 Lvl 2 or F-150 u-bolts/spring plates), 31 spline axles, Torsen LS; larger axle tubesOnly available in 4.10:1 ratio - either need to re-gear rear or front in your case; wider than stock, drum brakes, Needs newer driveshaft*
95-05 Explorer/Explorer Sport/Explorer Sport Trac, 3.73:1 ratio31 spline axles, post '96 comes with disc brakes; larger axle tubesWider than any Ranger axle, spring mounts under axles - needs 2 drive's side Expo spring mounts for shocks and F-150 spring under axle kit or spring mounts relocated/shock mounts added, Needs newer driveshaft*
10-11 Ranger 8.8 LS 3.73 ratioDisc brakes; bolts right in.28 splines, but larger bearings so possible to install 31 spline axles, but they would need to be custom length, No speed sensor in differential; axle tube are 2-3/4" at axle and ends but larger in middle of tubes; Needs newer driveshaft*
F-150 8.8 LS 3.73 ratio31 spline axles, disc brakes; larger, thicker axle tubes5x135mm pattern, much wider (but it is rated for 3,800 lbs). Shortening tube and axles to Ranger width/ changing bolt pattern to 5x4.5" adds cost, Needs newer driveshaft*

Explorer versus FX4 Lvl 2 axles can swapped in order depending on your wrenching versus welding skills. My differential is composite of the FX4 Lvl 2 - 4.10:1 ratio and Torsen in Explorer housings/axles/brakes. I didn't need to play with lines to make connections, but maybe I was lucky.

*BobbyWalter has solution of using the front 1/2 of existing driveshaft to transfer case/rear 1/2 from 3rd gen to axle to create a working driveshaft without changing drive flanges. Note: This solution assume regular cab. If you have a SuperCab, you can use the rear section from gen 3 or gen 4 SuperCab.
This is awesome! Thank you!!
 


Top