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Old 10-02-2018, 12:23 PM   #326
phillipm
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Re: 1978 Russet Metallic 4x4

I want to say I'm surprised that they didn't hook up the IAT, however, we once got an install back and it was running terrible. Started poking around and they had just laid the IAT (which was plugged into the harness) on top of the intake manifold and called it good. It was at that point I started learning to do it myself. Cannot believe what people will charge you to do, and then do it terribly. I'm glad you found a reputable shop to take care of this for you!
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Old 10-04-2018, 11:32 AM   #327
OutlawDrifter
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Re: 1978 Russet Metallic 4x4

First off, wow, just made my way through this thread.

Second off, RamJet 350, epic!

On the transmission front a well built 4L65e will handle everything that RJ350 can throw at it, just make sure and put a nice big cooler on it. I 100% agree about 1st gear in a 4L80e. When the time comes to LS swap my '89 it will likely get a 65e. Not sure on hooking the 203 up to the newer tranny, however.
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1989 GMC K5 Jimmy SLE 350/700R4
1991 Z/28, 6.0L/T56
1949 GMC 250, S10 Frame, 6.0L/4L80E
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Old 10-04-2018, 12:42 PM   #328
buffydores
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Re: 1978 Russet Metallic 4x4

Quote:
Originally Posted by OutlawDrifter View Post
First off, wow, just made my way through this thread.

Second off, RamJet 350, epic!

On the transmission front a well built 4L65e will handle everything that RJ350 can throw at it, just make sure and put a nice big cooler on it. I 100% agree about 1st gear in a 4L80e. When the time comes to LS swap my '89 it will likely get a 65e. Not sure on hooking the 203 up to the newer tranny, however.
They make a short shaft kit to adapt the 203 to the 4L60. Thanks for your compliments.
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Old Yesterday, 07:52 PM   #329
buffydores
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Re: 1978 Russet Metallic 4x4

I've grown frustrated with the twin stick. The shifting is easy, but the linkage likes to bump the transmission tunnel and I need my little spacer bar to keep the kids from accidentally shifting the levers. So I dug up the old shifter that looked more like a heavy turd and started chiseling away the baked shell of 40 years of mud. Then I worked it with some brake cleaner. Disassembled. More brake cleaner, then soaked it in Evaporust for a day. Reassembled with a bunch of lithium grease, and its ready to go back in the Blazer. Found new bushings for the levers here: https://www.ebay.com/itm/1970-79-All...e7d7%7Ciid%3A1

These little refurb projects are fun. I'm also moving away from the 4-speed auto idea. It just feels like I lose too much identity with that upgrade.


Last edited by buffydores; Yesterday at 08:48 PM.
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Old Yesterday, 11:23 PM   #330
phillipm
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Originally Posted by buffydores View Post
I've grown frustrated with the twin stick. The shifting is easy, but the linkage likes to bump the transmission tunnel and I need my little spacer bar to keep the kids from accidentally shifting the levers. So I dug up the old shifter that looked more like a heavy turd and started chiseling away the baked shell of 40 years of mud. Then I worked it with some brake cleaner. Disassembled. More brake cleaner, then soaked it in Evaporust for a day. Reassembled with a bunch of lithium grease, and its ready to go back in the Blazer. Found new bushings for the levers here: https://www.ebay.com/itm/1970-79-All...e7d7%7Ciid%3A1

These little refurb projects are fun. I'm also moving away from the 4-speed auto idea. It just feels like I lose too much identity with that upgrade.

I was with you all the way till you said no to the overdrive upgrade. Thatís the first upgrade I make!
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