TH350 problem...found and fixed... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Lemield · 06-27-2011, 08:59 AM

A few weeks ago I posted a thread about a problem I was having with my TH350 in my 1970 CST. It suddenly started stack shifting and no amount of modulator adjustment or replacement or anything seemed to help....so I took it apart and lo and behold...this is what I found when I took the separator plate off....Yes...that's half a check ball and it's other half all mangled up....no wonder it was shifting so strange. I had no idea that some TH350's had rubber check balls. To fix it, I put in a new shift kit with a steel check ball and now it's shifting and working GREAT!!!

06-27-2011, 08:59 AM	#1
Lemield Registered User Join Date: Dec 2004 Location: Arvada Colorado Posts: 1,321	TH350 problem...found and fixed... A few weeks ago I posted a thread about a problem I was having with my TH350 in my 1970 CST. It suddenly started stack shifting and no amount of modulator adjustment or replacement or anything seemed to help....so I took it apart and lo and behold...this is what I found when I took the separator plate off....Yes...that's half a check ball and it's other half all mangled up....no wonder it was shifting so strange. I had no idea that some TH350's had rubber check balls. To fix it, I put in a new shift kit with a steel check ball and now it's shifting and working GREAT!!! Attached Images __________________ Larry 1949 Willys CJ2A, Kubota Turbo Diesel engine, Warn Overdrive, 11 inch brakes, 12volt, Warn M8000 Winch "Little Green" 1970 Rustoleum Roller Red C20 Custom Camper 454 TH400 "Big Red" 1971 K20 6.2 Turbo Diesel 4x4 4spd Ranger Overdrive "Pumpkin Wagon" 2005 VW Beetle Diesel 44+ MPG "Silver Bullet"

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