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Old 10-02-2005, 10:02 PM   #1
Kustom
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Trans question

Since the blazer forum is slow I hope you all will help me. The 700R4 in my 1985 blazer is going out. I have a chance to get a fresh rebuilt th400 cheap. What would be involved in this swap? The blazer has the stock np208 transfer case. Thanks in advane for your help.
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1969 Chevy LWB 350, vortec heads, pro perf intake & powerglide
1985 Chevy K5 Blazer
1951 Buick 2 door HT; 350/350 combo, sub frame, disc brakes
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Old 10-02-2005, 10:37 PM   #2
iceman7329
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www.73-87gmtrucks.tk under the link trans info might help you some.
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Old 10-03-2005, 05:21 AM   #3
JIMs70GMC
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Well you'd need a th400-208 adapter, shouldn't be too hard to find and a np208 for a th400, as the 208s had different input splines depending on the tranny, I believe the 700r4 had 27? and the turbo 400 version had 32. (for info the manual tranny 208s had 10 splines)
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs
1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX
1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears
1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now.....
1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone.
1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed.

1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm
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