The Ford 8.8-inch is basically a 7.5 with a larger Applications: 81-94 Bronco ................... rear 90-1/2-96 Explor .rear 90-1/2-92 Ranger with 4.0L engine ....... rear 81-'90 F-100 81-96 F-150/F-250 ................. rear '97 F-150 . . . .rear Ring gear diam Pinion gear diameter/splines: 1.626/30 splines Available gearsets: 308, 3.27, 3.31, 3.55, 3 73, 4 10. 4.33, 4.56, 4.88, 5.14 Available lockers: ARB Air Locker, Auburn limited- slip. Auburn Mini Spool, Detroit C-Locker, Detroit EZ Locker Appearing in almost every light truck with Ford written on the tailgate, the Ford 9-inch is one at the strongest light-axle designs around. Though production ceased several years ago, these units are still plentilul in wrecking yards, not to mention from custom axle builders. The 9-inch is drop-out, to house the ring-and-pinion, making it accessible train the lrunt rather than the rear ol the axle. This means there is no bolt pattern to look tor, only a round hump. Applications: 66-'88 Ford Bronco .... ..... .. . ...rear 57-87 F100/F715/F-250 .............. rear Ring gear diameter: 9 in Pinion gear diameter/splines: 1.313 in/28 and 31 sphnes Available gearsets: 2.80, 2.86. 2,94, 3.00, 3.10, 3.15, 3.25, 3.40. 3 50, 3.55, 3.60, 3.64, 3.70. 3,75, 3,80, 3.82, 3.89. 3.91, 4.00, 4.11 4.22, 4.30. 4.33. 4.40, 4 50. 4.56, 4.57, 4.63, 4.71.4.78, 4.86, 5.00, 5.14. 5,22, 5.29, 5.43 5.50, 5.57, 5.67, 5.83, 6.00. 6.14. 6.20, 6.33, 6.50 Available lockers: ARB Air Locker Auburn limited- slip, Auburn Mini Spool, Auburn Full Spool, Detroit Locker, DetrOit EZ Locker, Detroit Truetrac ring gear. The only wayto distinguish it trom the _~ smaller unit is to look at the vehicle its under or inspect the housing for identilying numbers. r easily spotted because it uses a third member, or . With its round cover design, the 8-1/2-inch 1t]- bolt is a semi-tloating integral design. lts claim to tame is that it replaced the Dana 44 in 1977 when GM decided to use its own products. Applications: 77-'87 010/K10/K20 .................. rear 77-91 Blazer . . . . . .front , 80794 Blazer ........................ rear 80194 C10/K10 ...................... rear 8872000 K1 BOO/K2500 . ............. rear . Ring gear diameter: 8.5 in Pinion gear diameter/splines: 1.626/28 and 30 sphnes Available gearsets: 2.73, 3.08, 3.23, 3.42, 3.70. 3.73. 3.90, 4.10, 4.11. 4.56, 4.88, 5.13, 5.38, 5.57 ' Available lockers: ARB Air Locker, Auburn limited- slip, Auburn Mini Spool, Auburn Full Spool, Detroit C-Locker, Detroit EZ Locker, Detroit Truetrac Two versions ol the GM 12-boll exist but have nothing more than the bolt count in common. One is a car version with a grooved cover plate, while the truck version cover plate is raised. The 12-bolt is integral and semi-oating, but isnt a big step up trom the 8-1/2-inch 10-bolt because the axleshatts and housings are very similar. A drawback to both the 10- and 12-bolt axles is that the axleshatts are retained by c-clips, which, it broken, can be a serious detriment to completing a trail, let alone getting home. Applications: 84-82 K10/K20 and Blazer Ring gear diameter: 8.875 in Pinion gear diameter/splines: 1438/30 splines ............ rear Available gearsets: 3.07, 3.42. 3.73, 4.10, 4.56, 4.88, 5.13, 5.38 Available lockers: ARB Air Locker, Auburn Limited- Slip, Auburn Mini Spool, Auburn Full Spool. Detroit CLocker, Detroit EZ Locker, Detroit Truetrac .. ..."... no in. g... ' 1 at! Q r i Quito-lied! .u* e G Iziiffl'lggii mun liuag . we .r .i.l GlVl produced two 14-bit" axles through the years: the 9-1/2-inch and the 1D-1/2-inch (shown). The 10-1/2-inch is the stronger at the two. compared to the Dana 70. Both use tit-boll covers, but the 9-1/2 is more egg-shaped (like a larger GM 7-1/2), while the 10-1/2 has straight sides and sharper corners. The 9-1/2 is an integral pinion design, where the pinion is removed through the rear cover plate. The 10-. 1/2 is a removable pinion design, which allows the pinion to be removed from the lront of the housing without putting the rear cover. Other distinguishing teatures oi the 10-1/2 are the six- bolt removable pinion support and tull-lloating , axles. Applications: 88-96 010/015/020 (971/27inch) ......... rear 88796 K10/K15 ..................... rear 81v96 K20 ...rear 73792 K2500/K3500 (10-1/2incl1) ....... rear Ring gear diameter: 9-1/2 in, 1071/2 in Pinion gear diameter/splines: 1.876 in/30 splines (9-1/2), 1.750 in/30 splines (10-1/2) Available gearsets: 342. 373, 4.10, 4.56, 4.88, 5.13 (10-1/2 only) Available lockers: ARB Alr Locker (9-1/2). Detroit Locker (10-1/2) e was a v3. , ,, 1 33%;} g 533* ~ , :3' was $5" :1-23 .