I had done some measurements and came up with 57.5 inches from drum to drum on stock axles. Below is a list of other axle widths just in case someone is looking to swap something out.
Toyota
Mini 79-85 (F) 8" 55" (pass side drop)
Mini 79-85 (R) 8" 55"
Mini 86+ (R) 8" 58"
4Runners 96+ (R) 8" 60"
Tundra/T100 (R) 8.4" 66"
FJ40.45.55 (F) 57" (pass side drop)
FJ40.45.55 (R) 55"
FJ60.62 (F) 60" (pass side drop)
FJ60.62 (R) 58"
FJ80 (F) 64" (pass side drop)
FJ80 (R) 63.5"
Added info:
Toyota Front Axle Widths:
55.5" wide, 29" spring perch centers, '79-85 Toyota trucks and 4runners, and most Landcruisers
63.5" wide, (set up for coil springs) 90-97 FJ80 and FZJ80 Landcruisers
58.5" wide, '86-95 IFS front end
65" wide, '93-98 T100 IFS front end
Toyota Rear Axle Widths:
55" wide, '79-85 trucks/4runners
58.5" wide, '86-95 trucks/4runners
60" wide, '95.5-up Tacomas/4runners
66.75" wide, '93-98 T100 trucks
Ford
Bronco 77 (F) Dana 44 58"
Bronco 77 (R) Ford 9" 57"
F250 78-79 (F) Dana 60 69.25" (driver side drop, king pin, leaf spring span: 31.5")
F350 78-79 (F) Dana 60 69.25" (driver side drop, king pin, leaf spring span: 31.5")
F350 '85-'91.5 (F) Dana 60 69.25" (driver side drop, king pin, leaf spring span: 36.5")
F350 '92-'99 (F) Dana 60 69.25" (driver side drop, balljoint, spring span: 36.5")
1/2 Ton '70 (F) Dana 44 65" (high pinion)
1/2 Ton '70 (R) Dana 60 65"
Chevy
K30 '79-'87 (F) Dana 60 69.5" (pass. side drop, king pin, leaf spring span: 32")
K30 CC '88-'91 (F) Dana 60 69.5" (pass. side drop, king pin, leaf spring span: 32")
Jeep
Cherokee Chief 81 (F) Dana 44 61"
Grand Wagoneer 89 (F) Dana 44 61.5"
WAgoneer 81 (F) Dana 44 60.5"
CJ-6 74 (F) Dana 30 51.5"
CJ-6 74 (R) Dana 44 50"
CJ-7 83 (F) Dana 30 56"
CJ-7 83 (R) AMC 20 55"
TJ Rubicon 03 (F) Dana 44 61"
TJ Rubicon 03 (R) Dana 44 60"
International
Scout 80 (R) Dana 44 60"
Mercedes
Unimog (F) 404 69" (driver's side drop)
Unimog (R) 404 69" (centered)
Unimog (F) U-1300 82"
Unimog (R) U-1300 82"
Unimog (F) 411 55.5"
Unimog (R) 411 55.5"
Nissan
Hardbody 86.5-97 (R) H233B 59"
Hardbody 86.5-90 (R) C200 59"
Frontier 99-2000 (R) H233B 62.5"
Isuzu
Trooper II 87 (R) Corporate 59"
Rodeo pre-'97 (R) Dana 44 58" (sua)
Rodeo 97-99 (R) Dana 44 60.5" (4-link)
Rodeo 00-03 (R) Dana 44 63" (4-link)
KIA
2000 Sportage (R) 60"
From WMS to WMS:
Up to '96 D44s with spring under (58")
From '97 to '99 with 4 link (60.5")
From '00 to '03 with 4 link also i think (63")
Maybe this is old news to some, but I thought they were all 58" wide. Also, all come with disks. So the '97 to '99 model D44 would be a perfect match for a Waggy D44 front.
1980 SCOUT REAR D44 60" WMS-WMS.
Chevy D60s
K30 '79-'87 and K30 crew cab '88-'91 (F) 69.5" (pass. side drop, king pin, leaf spring span: 32")
Ford D60s
F250 and F350 '78-'79 (F) 69.25" (driver side drop, king pin, leaf spring span: 31.5")
F350 '85-'91.5 (F) 69.25" (driver side drop, king pin, leaf spring span: 36.5")
F350 '92-'99 (F) 69.25" (driver side drop, balljoint, spring span: 36.5")
Unimog 404 front and rear - 68" (measured with wheels on, not exact)
front is driver's drop, rear is centered
1970 HPD44 65" WMS/WMS Front
1970 D60 65" WMS/WMS Rear
Tripper
