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1/8th scale diff build advice


jim46

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Hi all, just started diff build on xray xb8e kit, diffs are all built as per manual, its the fitting into diff housing and shimming that dont seem right, i have used a shim each side of bearings to help get get correct mesh between ring gear and pinion, this seems good with no side to side movement once fitted in housing, and mesh feels good, its the lateral movement thats bad once fitted in housing and checked for free play, i grab each outdrive and its like the bearings are not a tight fit in the diff case so loads of movement, seems to loose, but checked the bearings and they are a good fit, its like the whole diff, ring gear moves around which would cause you loose the mesh and damage the gears, what am doing wrong here, cant fit any more shims in.

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