DIVERSIFIED MACHINE INC. 2020 PRODUCT GUIDE
Squaring the Front Axle:
Set the front axle on 4" set-up blocks, or 3" and 4" if it is a raised rail car. Offset the axle 1" to the left side by adjusting
the sway bar. This gives clearance to the left front torsion arm and combo steering arm. Measure 14" from the center of
the right front torsion tube to the center of the axle on both sides. After roughing in the radius rods to this measurement,
measure from the leading edge of the rear axle (still on 6" blocks) to the rear edge of the front axle on the rightside.
After having gained this measurement we will set the lead. Check the left side the same way and adjust the rod length
so that the left measurement is equal to or up to .25" set back depending upon driver preference and size of track. With
the axle now square we can adjust the caster. Place an angle finder on the right front steering arm. Adjust the top right
front radius rod so that the angle reads anywhere from 6 to 10°. Again this is driver preference, some drivers like more
positive feel in the front end than others. With this complete you can drop the axle down to race height set-up blocks
and adjust the stops. Don’t forget to set the tow. An .125" of tow out is generally the norm.
(Information provided by Maxim Chassis)
Spring Rate Chart
BULLDOGREARS.COM | 717.397.5347 | DIVERSIFIEDRACING.COM 83
Tech Specs
30" BAR 23" EFFECTIVE LENGTH
Arm
Length
12" 12.5" 13" 13.5" 14" 14.5" 15" 15.5" 16" 16.5" 17"
.900 224 206 190 176 164 153 143 134 126 118 111
.925 250 230 213 197 183 171 160 150 140 132 124
.950 278 256 237 219 204 190 178 166 156 147 138
.975 308 284 262 243 226 211 197 185 173 163 153
1.000 341 314 290 269 250 233 218 204 192 180 170
1.015 362 333 308 286 266 248 232 217 204 191 180
1.025 376 347 321 297 276 258 241 226 212 199 187
1.050 414 382 353 327 304 284 265 248 233 219 206
1.065 439 404 374 346 322 300 281 263 247 232 219