I had a Wc T5 in my 89 camaro. The tranny never gave me problems with any gears and shifted smooth. I still wanted to rebuild it because I had it out of the car and was going to use it behind my zz430,I ended up using a t56 and selling the t5 to a friend. It was rebuild with a kit from 5speeds.com by a tranny shop. 30 miles later the tranny does not have a 5th gear at all? no grind or anything its just not there? What could be doing this anybody had a similar Problem?

 

its probable that the problem is with the 5th gear selector fork, either broken or the roll pin is missing(?)

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1984 Z28 (L69) monochrome tangerine orange with IROC decals and hood
1987 IROC wheels with Goodyear GSC's
305 from 87 IROC with 1994 LT1 cam (203/208 .450/.460")
performer intake with holley 600 (#1850)
Qjet is in the works
dynomax cat-back
non WC T-5 with 0.73 5th
3.27 nine-bolt

 

The snap ring that holds 5th gear in place could have come off. That happened to me. It needs to be replaced with a new one, dont try to reuse the old one, or it will do it again.

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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

I assume the bellhousing isn't cracked or anything, right? that can cause ya some big problems