# 1999 Toyota 4Runner - Transmission (?)

**URL:** <https://community.cartalk.com/t/1999-toyota-4runner-transmission/50391>\
**Category:** Maintenance/Repairs\
**Tags:** toyota, 4runner\
**Created:** [June 16, 2010, 4:22am UTC](https://community.cartalk.com/t/1999-toyota-4runner-transmission/50391 "2010-06-16T04:22:52Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jhcars](https://avatars.discourse-cdn.com/v4/letter/j/f05b48/32.png) [@jhcars](https://community.cartalk.com/u/jhcars)\
**Post date:** [June 16, 2010, 4:22am UTC](https://community.cartalk.com/t/1999-toyota-4runner-transmission/50391/1 "2010-06-16T04:22:52Z")

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'99 4Runner,4WD, Automatic 6 Cyl, 220K Miles,Rebuilt Trans 2 yrs ago. Acting same as it did when I had tranny rebuilt -Usually at start will reverse but won’t engage in any fwd gear. Then slips (more like ‘slams!’ into gear like it has vacuum leak. very infrequent (1X/mo) but this week it did it while at a stop sign after I’d been driving a while. I know I have a Rear-Diff leak. Is this a tranny issue, rear-diff or something else?