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#1 |
Got big-block?
![]() Join Date: Jul 2000
Location: Austin, Texas
Posts: 2,453
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Turbo 400 to 700R4 swappers...question inside
I'm swapping a 700R4 into my '77 C-20.
For you guys that have done this swap, how much needed to be cut from the driveshaft length? Thanks, SC
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'68 CST SWB factory 396/T400 buddy buckets, a/c, ps, pb '72 Corvette convertible 454/4spd/ac, ps, pb '73 GMC Sierra Grande short wide 454/T400 ps, pb, ac '77 K5 Blazer black on red, 350/T350/NP205 ps, pb, ac all original '78 GMC Sierra Classic short wide 454/T400 ps, pb, ac '72 GMC Sprint SP454. 1 of 38 built. '73 GMC Sprint SP454. 1 of 71 built. '75 GMC Sprint SP454. 1 of 25 built. SOLD! '72 GMC K25 4x4 468/4L80e/NP205 build thread http://67-72chevytrucks.com/vboard/s...23#post4324423 SOLD!'55 Chevy gasser 496/4spd build thread http://67-72chevytrucks.com/vboard/s...96#post4324396 |
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#2 |
Senior Member
![]() Join Date: Jun 2002
Location: Kansas
Posts: 702
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Not sure about the length of your T-400 tail housing, your best bet is to get your new trans instld. then put your your 700R4 yoke (not the same as T-400) in all the way, then pull back out .75" to 1.0", then measure from center line of u-joints. (be sure your rear suspension is at ride height when measuring). Just finished swaping to a 700R4 in my kids 68 PU, Take your wallet with ya when getting that new 700R4 yoke ($70.00) couldn,t find one at the salvage yard.
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The kid Build threads: 51 Jimmy http://67-72chevytrucks.com/vboard/s...d.php?t=154951 http://67-72chevytrucks.com/vboard/s...d.php?t=219902 http://www.classictrucks.com/feature...uck/index.html 68 C10 http://67-72chevytrucks.com/vboard/s...ad.php?t=50348 |
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