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#30081 07/19/2003 11:35 PM | Joined: Feb 2000 Posts: 12 Junior Member | | Junior Member Joined: Feb 2000 Posts: 12 | I have a 57 Chevy with a 3spd OD transmission. Today when starting out I heard a load pop and then the trans. shifted normally. The next time I stopped and then started again, there were no forward gears, only reverse. After putting it in reverse briefly, the forward gears worked normally and I traveled for several miles. When downshifting to 2nd around a corner, I again lost the forward gears and had to be towed home. Can anyone give me an idea of what this problem may be before I tear into the transmission? I have a spare 3spd for parts. Also,if anyone could recommend a vendor for repair parts I would appreciate it. Thanks for all suggestions. | | |
#30082 07/20/2003 2:06 AM | Joined: Aug 2000 Posts: 346 Shop Shark | | Shop Shark Joined: Aug 2000 Posts: 346 | Joe,
Sounds like the overrunning clutch in the overdrive unit. It's locked out in reverse. Does it do it with the overdrive handle pulled out?
'38 Chevy 1-1/2 ton
'49 Chevy 1/2 ton
'54 Chevy 6400 2 ton
'55.2 GMC 3/4 ton
'56 GMC 1-ton
No Room Left in Shop
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#30083 07/20/2003 6:01 AM | Joined: Feb 2000 Posts: 12 Junior Member | | Junior Member Joined: Feb 2000 Posts: 12 | OlBlue,
You're exactly right. After my initial post,it occurred to me that I forgot to check it with the OD lockout cable pulled out. I checked it and it works fine with the cable pulled out,so I figure it is the freewheeling clutch mechanism. If anyone has any tips for this repair or a source for parts I would appreciate it. Thanks! | | |
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