Transmission Help Part II - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Eyegore · 11-15-2005, 08:48 PM

OK, I replace the modulator and checked the vaccum hoses but still cannot get 2 or 3rd, reverse works and 1st. This is the 400th in my sons 78 3/4 ton, any more advice would be appreciated, thanks again.

Tom

*87 GMC* · 11-15-2005, 09:07 PM

Ok, I bought my 87 for $200 because of this problem, anyway the only way to fix it is to rebuild it.

86 GMG · 11-16-2005, 10:12 AM

im no tranny guy but i have heard people talk about a gov. in a tranny can do wierd things i dont know but you didnt say anything about that? just tring to help good luck

11-15-2005, 08:48 PM	#1
Eyegore What Hump? Join Date: Apr 2003 Location: New River AZ Posts: 2,009	Transmission Help Part II OK, I replace the modulator and checked the vaccum hoses but still cannot get 2 or 3rd, reverse works and 1st. This is the 400th in my sons 78 3/4 ton, any more advice would be appreciated, thanks again. Tom __________________ Lil red 86 c-10 99 Sub 78 Camper Special w/ 454

11-15-2005, 09:07 PM	#2
87 GMC Account Suspended Join Date: Aug 2005 Location: Georgia Posts: 112	Re: Transmission Help Part II Ok, I bought my 87 for $200 because of this problem, anyway the only way to fix it is to rebuild it.

11-16-2005, 10:12 AM	#3
86 GMG Registered User Join Date: Apr 2005 Location: Tulsa Oklahoma Posts: 943	Re: Transmission Help Part II im no tranny guy but i have heard people talk about a gov. in a tranny can do wierd things i dont know but you didnt say anything about that? just tring to help good luck __________________ square body trucks an addiction or an investment either way they consume all my extra time and money



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