GMC/Chevy 4500/5500 Series Trucks Supplementary Installation Instructions for RW-1019

GMC / Chevrolet no longer offers the 3500HD pickup truck. There is still a dual rear wheeled 3500, but its maximum GVWR is only 11,400lbs. The Class 4 & 5 GVWR ranges (14,001 to 19,500lbs) that used to be covered by the 3500HD are now part of the GMC / Chevrolet TopKick / Kodiak (4500/5500 family) line of trucks.

The TopKick / Kodiak line of trucks is much more similar in overall construction to its heavier GVWR cousins than it is to the old 3500HD pickup trucks. Therefore, the DMF RW-1019 railgear has been modified to better suit this line of trucks. The redesigned RW-1019 for TopKick /Kodiak trucks is very similar to the larger DMF RW-1212 and RW-1420 railgear. The only difference between this RW-1019 for the Chevy /GMC 4500 / 5500 series trucks and the RW-1212 and RW-1420 line is the size of the rail wheels, bearings, axle and the pivot arms.

ATTACHING GEAR TO TRUCK:
1) Remove front bumper and store for re-installation later.
2) Bolt on front frame extensions provided with railgear.
3) Slide Railgear under truck.
4) Raise the rear of one pair (passenger or driver’s side) of long arms so that the two sections of threaded rod straddle the leaf spring. Continue to raise the spring hanger until it comes in contact with the lower most leaf. This can be made easier by inserting an appropriately sized bolt through hole marked “A” in BOTH inner and outer long arms. Then slide a long lever (e.g: 1-1/2” tube steel) OVER the bolt and UNDER the rear pin / spring hanger.

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