86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

R452 5th Gear in R150/R151

Old 04-25-2019, 11:40 PM
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Originally Posted by Peter Williams View Post
basically it looks like they've just lathed down the gear on one side ?
Yeah, sort of. But since the gear is probably heat treated/case hardened it would've been harder to take that all off on a lathe + it might have an effect on its hardness since it would've been over-heated again by the same process. So I requested for it to be cut on a wire-cut EDM machine and brought to exact dimension on a surface grinder.
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