| Extra differential durability, that's what the S4D provides. This transaxle is uses the same transmission design and gear sets as the proven S4 transaxle but has a larger 11.5" ring gear for increased strength in higher HP applications. This model is ideal for V8 applications developing up to 900HP with the high torque that is harnessed better with a larger differential. |
If you're considering an upgrade from an S4 trans .......

| 11.5" FORGED RING & PINION SET | |
| C.V. CENTERLINE TO BOTTOM OF CASE, SAME AS 'S4' | |
| FLANGE TO FLANGE DISTANCE, SAME AS 'S4' | |
| V-8 BELLHOUSING STANDARD | |
| Cable activated shifter | |
| 4.88 & 4.63 Ring & Pinion ratios | |
| Dog ring engagement | |
| All new EN36C gear sets - 1" face widths, much larger shaft centers | |
| 1 3/16-18 HEMI-SPLINE, 300M INPUT SHAFTS | |
| 935 drive flanges | |
| 19MM REVERSE GEAR | |
| SUPER-DUTY 14 BOLT ALLOY DIFFERENTIAL | |
| 8 BOLT HD4 STYLE PINION BEARING HOUSING | |
| ALL CASTINGS AIRCRAFT QUALITY A-356 T-6 ALUMINUM ALLOY | |
| BILLET ALUMINUM SIDE COVERS | |
| 6.5" DIFFERENTIAL BEARINGS | |
| Cooling pump, optional | |
| Up to 1000HP range, sand applications | |
| A perfect match for high output V8s | |
| Weight 200 |