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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: 85BURBAN on January 03, 2009, 04:01:15 pm

Title: 700R4 TO A TH350
Post by: 85BURBAN on January 03, 2009, 04:01:15 pm

recently bought an 85 jimmy with a 305,700r4 combo have a suburban with a built 350 and a th350 the motor is definately going in the 700r4 is slipping and the th350 shifted great od would be nice but the cost of a rebuild is something i can dish out right now, would the th350 dolt right up and what kind of modification wouls i have to do to go from the 700r4 to the th350 any input would be much appreciated

Title: Re: 700R4 TO A TH350
Post by: VileZambonie on January 03, 2009, 04:08:48 pm

Is that a typo or do you not have the money for a rebuild?  ??? If you have the $ to rebuild the 700R4 go that route. You'll appreciate overdrive.

Title: Re: 700R4 TO A TH350
Post by: 85MudMonster on January 03, 2009, 04:53:32 pm

I think he is saying he does not have money to rebuild the 700r4 right now. If he wants to sell it I'm interested.

Title: Re: 700R4 TO A TH350
Post by: 85BURBAN on January 03, 2009, 05:04:59 pm

sorry about the typos but yes right now a rebuild isnt in the budget and i do not want to sell i will rebuild eventually but if it goes would the th350 bolt right in?

Title: Re: 700R4 TO A TH350
Post by: 85MudMonster on January 03, 2009, 05:13:59 pm

I think there is a difference between th 700r4 and the th350, but i'm pretty sure that the th350 and the th400 are the same. Vile, is there a difference in the mounting points of the 700r4 and the th350?

Title: Re: 700R4 TO A TH350
Post by: TexasRed on January 03, 2009, 05:15:25 pm

The mounting would be a little different on the th350. There's a chance the th350 has long tailshaft and wouldn't require a driveshaft mod. In the end, it might be cheaper to just rebuild the 700r4 on your own then to move the th350 in it.

Title: Re: 700R4 TO A TH350
Post by: VileZambonie on January 03, 2009, 06:02:15 pm

85MudMonster do you need a trans?

You will need an adapter to your transfer case

Title: Re: 700R4 TO A TH350
Post by: 85BURBAN on January 03, 2009, 06:20:30 pm

vile
   the driveshaft should be reusable right ive just seen the adapter kit on line it comes with a new dipstick tube, detent cable and such.hopefully i can swap out hte trannys soon(weather permitting) and have the 700r4 rebuilt over the summer so ican can give the 350 in my burban a little refreshing and install both hopefully by august.

Title: Re: 700R4 TO A TH350
Post by: VileZambonie on January 03, 2009, 06:28:48 pm

Bring the 700R4 to me. I'll rebuild it. I'm close enough

Title: Re: 700R4 TO A TH350
Post by: 85MudMonster on January 03, 2009, 06:32:44 pm

Quote from: VileZambonie on January 03, 2009, 06:02:15 pm

85MudMonster do you need a trans?

You will need an adapter to your transfer case

My truck needs many things, I need a new transfer case so I can actually put it into 4WD. I'd like to have a 700r4 so that I can have overdrive for the interstate. I'd like to put a manual in it but I ain't got that kind of time (patience) or money

Title: Re: 700R4 TO A TH350
Post by: VileZambonie on January 03, 2009, 06:34:02 pm

find a cheap 4wd parts truck

Title: Re: 700R4 TO A TH350
Post by: 85BURBAN on January 03, 2009, 06:58:19 pm

when im ready to rebuild i just may do that,you seem like you know your stuff how far into ct are you from ri?

Title: Re: 700R4 TO A TH350
Post by: VileZambonie on January 03, 2009, 07:01:27 pm

Click (http://maps.google.com/maps?hl=en&tab=wl) Coventry CT

Title: Re: 700R4 TO A TH350
Post by: dumbucket1 on January 03, 2009, 07:28:07 pm

so I take the suburban is 4wd also?

Title: Re: 700R4 TO A TH350
Post by: 85BURBAN on January 04, 2009, 10:26:03 am

yes the burban is a 350 with a th350 and a np208 transfercase its actually a 85 body on a 79 chassis

Title: Re: 700R4 TO A TH350
Post by: 80stepsideguy on January 04, 2009, 10:40:49 am

85Burb,

where in rhode island are you at? I just came back from RI last week right before you got your 2nd snow storm.I have my family that lives in coventry RI .
thanks
pat