Difference Between MORryde Equalizers For 33" Wheelbase on Tandem Axle Trailer
Updated 12/15/2025 | Published 11/01/2024
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Question:
So the only difference between cre3000 and sre4000 is the length of the slot it rides in the middle? My original shackles broke,trailer came with MORryde suspension. Going to upgrade,gvw 18000 fifth wheel. 33 in spread on axles
asked by: David C
Expert Reply:
Hi David,
The SRE4000 is no longer available and has been replaced by the AllTrek 4000, and there are a couple difference between the AllTrek and CRE3000. First, here are the part numbers for a tandem axle trailer with 33" wheelbase:
- MORryde ALLTREK 4000 Shock Absorbing Equalizers # MR89DR
- MORryde Rubber Equalizers # MR87ZR
The differences between the AllTrek 4000 and the CRE3000 (which is the latter part above) is the longer slot on the AllTrek which gives more suspension travel (4 inches compared to 3 inches), ad its additional rubber (40% more) than the CRE. This means more shock absorption for a better overall ride.
The only other thing you'll need with these is a suspension upgrade kit which includes the shackle straps and wet bolts for installation. You'll want to use the same size shackle straps as you have now (measured center to center), so either the MORryde Suspension Upgrade Kit for Tandem Axle Trailers - 3-1/8" Long Shackle Straps # MR76ZR or 2-1/4" Long Shackle Straps # MR46ZR.
Product Page this Question was Asked From
MORryde Suspension Upgrade Kit for Tandem Axle Trailers - 3-1/8" Long Shackle Straps
- Trailer Suspension Parts
- Suspension Kits
- Boat Trailer
- Snowmobile Trailer
- 3-1/8 Inch Long
- Tandem Axle
- MORryde
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John H.
12/15/2025
Hey David, how did the upgrade with the AllTrek 4000 and the suspension kit work out on your fifth wheel? Your results could really help others comparing it to the CRE3000 setup.