| Model |
System
Capacity (lbs.) |
Axle
Diameter (in.) |
Ride Heights (in.) |
Notes |
| ULTRAA-K® |
| UTKNT 40K |
40,000 |
LDA™ Large-Diameter Axle |
16 |
Standard |
| VANTRAAX® |
| HKANT 40K |
40,000 |
LDA |
16 |
Optional; Requires QUIK-DRAW® |
| INTRAAX® |
| AANT 23K |
23,000 |
LDA |
14, 15, 16, 17 |
Optional; std. travel only |
| AAT 23K* |
23,000 |
LDA |
14, 15, 16, 17 |
Optional; std. travel and limited rebound* |
| AAT 25K* |
25,000 |
LDA |
14, 15, 16, 17, 18, 19 |
Optional; std. travel and limited rebound* |
*RCA Raised-Center Axle is available on AAT23K models equipped with ZMD for both standard and limited rebound travel. Only 14" or 16" ride heights are available with limited rebound travel when spec'ing RCA.