Bellhousing bolt pattern, 3800 Series II? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 02-05-2006, 08:59 PM   #11
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GM had some junk in there for many years... Just look at the early years of the THM440-T4... They were a nightmare in the making.. They were pretty decent by 90-93.. I still think the 89 was the best overall 440-T4 they made.. But they all had their issues...

I was thinking the good one were the old non lockup 350 and 400 units.... These were some of the best GM transmissions I have ever seen...

I just wishied I knew how to rebuild the GM THM 350-400'* 700R4 and the THM440-T4( 4T60 ) and the 4T60-E... I'll bet the first few would be failures...

Now as for the bolt patterns, is the 2004R the only one that will bolt to the 3800 block?

I have never really paid close attention to the 60* V6, 3800, and checy or Olds V8'* as far as the tranny bolt pattern is concerned...

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Old 02-07-2006, 01:26 PM   #12
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Fwd and RWD 3.8'* do not share the same bell housing, a possibility might be to use a newer Camaro Borg Warner T5 5speed standard the 96 up Camaro came with the 3800 series II and the T5 tranny. Only problem with using the 3800SC and a RWD car is the throttle body would be into the fire wall let alone the breather ducting and air filter. Dan
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Old 02-07-2006, 05:33 PM   #13
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Clue me in here...

TCC wires and bellhousing can't go in the same sentence can they? Doesnt a bellhousing house the clutch on a manual tranny?>
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Old 02-07-2006, 06:30 PM   #14
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V8 90 DEG. GM
V6 60 DEG. 2.8, 3.1, 3.8, NORTHSTARS

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