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-   -   84 Chevy shortbed 4x4 won't go (https://67-72chevytrucks.com/vboard/showthread.php?t=620412)

500dallorbeauty 03-12-2014 07:47 PM
84 Chevy shortbed 4x4 won't go
 
I have a 84 Chevy shortbed that I just changed the tranny from 700r4 to a 400 turbo with np203 transfer case. I put a tourque converter from a 350 turbo in it and now the truck won't go over 35 mph. What did I do wrong!!

ont_guy_38 03-12-2014 07:58 PM
Re: 84 Chevy shortbed 4x4 won't go
 
Is it shifting gears? A 700 uses a cable to shift and a 400 uses a vacuum modulator. Did you hook all that up?

500dallorbeauty 03-12-2014 08:56 PM
Re: 84 Chevy shortbed 4x4 won't go
 
Yes it is shifting changed over cable to vacuum.

rs74 03-12-2014 09:52 PM
Re: 84 Chevy shortbed 4x4 won't go
 
Does it seem like it is slipping, revving up high? Might need more details.

500dallorbeauty 03-12-2014 11:13 PM
Re: 84 Chevy shortbed 4x4 won't go
 
Drives fine shifts fine until it gets to about 35 then motor bogs out and dies 305 all stock runs good

cadillac_al 03-13-2014 08:05 AM
Re: 84 Chevy shortbed 4x4 won't go
 
When the motor starts bogging, can you throw it in neutral and rev it? It sounds engine related to me.

68post 03-13-2014 08:37 AM
Re: 84 Chevy shortbed 4x4 won't go
 
Quote:
Originally Posted by cadillac_al (Post 6572850)
When the motor starts bogging, can you throw it in neutral and rev it? It sounds engine related to me.
I agree, could be related to a lack of fuel flow. Run it thru the gears hard to see want happens.


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