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12-02-2012, 12:29 PM
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#1 |
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Registered User
Join Date: Apr 2008
Location: novinger, mo
Posts: 62
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4spd to 700r swap
hello, fellow truck members. I am in the process of starting a tranny swap. I've done the search function, but really could not find the answers I am looking for (if there is please post). OK here goes ... truck is a 84 gmc 2wd long bed 3/4 ton with a 4 spd (sm465?-3spd w/granny low). The rear end has removeable drums (not bolt on type). Now, here come the questions. Has any one done this swap? If so, what does this swap consist of ? I'm talking from end of crank to u-joint going into the rearend. Also cables, brackets, electronics, and mounts. THANK YOU for any info posted !!
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12-02-2012, 02:59 PM
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#2 |
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BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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Re: 4spd to 700r swap
After you remove all the SM465 parts, you need several parts.
Read this information: http://transmissioncenter.net/700R4_Swap_Info.htm Grab a driveshaft from a LWB truck. You may need the transmission crossmember. |
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12-03-2012, 05:05 PM
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#3 |
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Registered User
Join Date: Apr 2008
Location: novinger, mo
Posts: 62
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Re: 4spd to 700r swap
Thanks gchemist for the link, but not much info on 4 spd to automatic swap. Lots of useful info for other swaps. Any others out there with info? THANKS!!
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12-03-2012, 07:34 PM
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#4 |
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BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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Re: 4spd to 700r swap
For your particular swap, read this backwards.
http://coloradok5.com/forums/showthread.php?t=265119 First understand what is required for a 700R4. Then find what you have and what you need. |
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12-04-2012, 09:07 AM
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#5 |
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Registered User
Join Date: Aug 2011
Location: Gallatin, TN
Posts: 782
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Re: 4spd to 700r swap
I would strongly suggest finding a crossmmember from a square that originally had a 700r4 in it. I just swapped one into my 77 in the place of a th350 and had to modify my crossmember to work.
__________________
77 C10, 6.0LS/4L80E, 3:73 12 bolt. Boss 338's 20" x 10" w/ 285/50/20 rear. 20" x 8.5" w/ 245/40/20 front. Vintage Air. Full Autometer gauges recessed in factory bezel (Thanks bigblock73!) Gm Storm Grey Metallic paint "Cool ain't ever cheap and cheap ain't ever cool" |
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12-08-2012, 09:41 AM
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#6 |
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Registered User
Join Date: Apr 2008
Location: novinger, mo
Posts: 62
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Re: 4spd to 700r swap
anymore info out there? thanks!
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12-08-2012, 11:43 AM
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#7 |
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Moderator
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,941
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Re: 4spd to 700r swap
You'll need a steering column and OD shift indicator for your cluster.
You'll also need the linkage from the column to the transmission including the frame mount with the spring and plastic ball. The TH350 / TH400 linkages will work. If you have the AT cooler in your radiator just pull the plugs out and install the lines. Most aftermarket radiators have them they're just plugged. Get the tooth count from the Speedometer gears in your SM465. Someone more knowledgeable could tell you whether they use the same output gear or not.
__________________
1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. |
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12-11-2012, 07:27 PM
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#8 |
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Registered User
Join Date: Apr 2008
Location: novinger, mo
Posts: 62
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Re: 4spd to 700r swap
thanks hatzie, (or others) do you know if the front half of a driveshaft (from a truck with 700r) will mate to the rear half (my 3/4 ton shaft)?
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12-23-2012, 12:31 PM
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#9 |
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Registered User
Join Date: Apr 2008
Location: novinger, mo
Posts: 62
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Re: 4spd to 700r swap
anymore info out there? thanks!
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