Outlawfleet Posted November 4, 2023 Share Posted November 4, 2023 Problem: my crd151 is howling and has a ton of metal in the top housing. It’s also causing a BAD vibration. $6,000 for a reman. I can not seem to find a good used take out in a 3.79 ratio. im being told CRD92/93 will fit my housing, but they do not come in the same ratio as the 150s so I would have to change both diffs. 92/93 seem to be much cheaper and more available. Would y’all recommend ditching the 151/150 in favor of the 92/93? Thoughts and opinions? Thanks. Quote Link to comment https://www.bigmacktrucks.com/topic/73497-crd151-issues-what%E2%80%99s-my-options/ Share on other sites More sharing options...
kt_Engineer Posted December 14, 2023 Share Posted December 14, 2023 On 11/4/2023 at 10:19 AM, Outlawfleet said: Problem: my crd151 is howling and has a ton of metal in the top housing. It’s also causing a BAD vibration. $6,000 for a reman. I can not seem to find a good used take out in a 3.79 ratio. im being told CRD92/93 will fit my housing, but they do not come in the same ratio as the 150s so I would have to change both diffs. 92/93 seem to be much cheaper and more available. Would y’all recommend ditching the 151/150 in favor of the 92/93? Thoughts and opinions? Thanks. CRD92/93 is old version that has been in production for 40+ years and replaced with CRD150/151 in 2009. The newer axle has slightly better design and rating and capable of pulling upto 150,000 lbs for linehaul applications. You can try to find closest ratio CRD92/93 but will need to ratio match with smaller or bigger tires so as to not burn up inter-axle powerdivider. Quote Link to comment https://www.bigmacktrucks.com/topic/73497-crd151-issues-what%E2%80%99s-my-options/#findComment-543468 Share on other sites More sharing options...
fjh Posted December 22, 2023 Share Posted December 22, 2023 On 11/4/2023 at 7:19 AM, Outlawfleet said: Problem: my crd151 is howling and has a ton of metal in the top housing. It’s also causing a BAD vibration. $6,000 for a reman. I can not seem to find a good used take out in a 3.79 ratio. im being told CRD92/93 will fit my housing, but they do not come in the same ratio as the 150s so I would have to change both diffs. 92/93 seem to be much cheaper and more available. Would y’all recommend ditching the 151/150 in favor of the 92/93? Thoughts and opinions? Thanks. My opinion of the 151 is the only good thing about it is the diff lock! KT and I disagree on its reliability ! It has some design flaws from my view point ! 92 /93 has the test of time going for it! How ever I think you closest ratio will be around 3.87 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73497-crd151-issues-what%E2%80%99s-my-options/#findComment-543932 Share on other sites More sharing options...
880joe Posted December 23, 2023 Share Posted December 23, 2023 Don't know for sure but I've always heard the 3.86 ratio was alot tuffer than the 3.87 if you're going to change to the 92/93 carrier's Quote Link to comment https://www.bigmacktrucks.com/topic/73497-crd151-issues-what%E2%80%99s-my-options/#findComment-543951 Share on other sites More sharing options...
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