Well look what followed me home...

oldsmobile joe

Royal Smart Person
Nov 12, 2015
1,754
113
mpls
Sort of...

For 1988-91 you could buy a suburban, full sized blazer/jimmy, or a HD version of the r/v series line in regular or crew cab.
are we talking square body caprice or square body truck?
 

ck80

Comic Book Super Hero
Feb 18, 2014
2,796
113
Not all the trucks went 400 in 88.
Gmt400 was the "light duty" pickup line through MY 1991, then took over everything in 1992. That's not to say you couldn't get higher than 1/2 ton ratings in the c/k gmt400 from 88-91, you could.

But full-sized SUVs and HD trucks remained the R/V chassis designation they picked up with fuel injection in 1987, cab/chassis trucks kept being built on the platform. So on so forth.

It very loosely sort of analogous to how ram is building the regular cab classics on their old platform while the crew cabs get built on the new one. Or how ford built square f-series in the f250-up in 1997 past the rounded line intro, then called them super duty for some years past that.
 

Jim Rockford

Master Mechanic
Thread starter
Nov 10, 2007
262
63
Shelby,N.C.
in 87 square body trucks got TBI so the ECM is the newer 727 style. nothing from trucks I could use.
 

Jim Rockford

Master Mechanic
Thread starter
Nov 10, 2007
262
63
Shelby,N.C.
It ain't pretty, but its damn sure alot nicer to drive. 6 way power drivers seat for the win.
20210706_125653.jpg
 

Jim Rockford

Master Mechanic
Thread starter
Nov 10, 2007
262
63
Shelby,N.C.
98 bonneville with over 250k on it..lol they were pretty nasty when i got em .
 

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jiho

G-Body Guru
Jul 26, 2013
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Jim Rockford

Master Mechanic
Thread starter
Nov 10, 2007
262
63
Shelby,N.C.
Little something I found today while looking to spend money..lol Hard to find these for under 125 around here ,,Got it for the low amount of money I wanted to pay. Knew one would show up for the price I wanted if I just waited.
223123082_117801723912213_2635323923259580346_n.jpg

New low budget 350 build thread in the engine section.
 
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