Square body 4x4 transmission troubles - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72freak · 11-20-2010, 12:08 AM

I am trying to help a friend figure this out from 200 miles away and with no pictures. I know nothing about 4x4's.

1984 4x4...when he got it it had a TB350 with NP208. They replaced it with a 700R4 for the overdrive and didnt keep up with all the old 350 stuff. The 700R4 died a few months later (TV cable issues probably) and they scrounged around to find all the 350 stuff to put it back to original. It is now at a shop and the "mechanic" is saying there are some parts missing and that the TB350 is now too short?!?!?!

All I can think of is the transmission cross member was moved and needs to be moved back. I have also been told they did not change the drive shaft when they went from the 350 to the 700...is this true with a 4x4???

I thought the lengths of the 2 transmissions were different along with the yokes being different so a different drive shaft would have to be used?!?!?! Or is that just 2x4's?

I have no idea what they are talking about.....any thoughts?

Any good pictures of a TB350 with the 208 strapped to it?

11-20-2010, 12:08 AM	#1
72freak Rottenwood Garage Member Join Date: May 2005 Location: Marietta, Georgia Posts: 4,321	Square body 4x4 transmission troubles I am trying to help a friend figure this out from 200 miles away and with no pictures. I know nothing about 4x4's. 1984 4x4...when he got it it had a TB350 with NP208. They replaced it with a 700R4 for the overdrive and didnt keep up with all the old 350 stuff. The 700R4 died a few months later (TV cable issues probably) and they scrounged around to find all the 350 stuff to put it back to original. It is now at a shop and the "mechanic" is saying there are some parts missing and that the TB350 is now too short?!?!?! All I can think of is the transmission cross member was moved and needs to be moved back. I have also been told they did not change the drive shaft when they went from the 350 to the 700...is this true with a 4x4??? I thought the lengths of the 2 transmissions were different along with the yokes being different so a different drive shaft would have to be used?!?!?! Or is that just 2x4's? I have no idea what they are talking about.....any thoughts? Any good pictures of a TB350 with the 208 strapped to it? Attached Images __________________ 2004 Chevrolet Suburban C1500 2001 Chevrolet 2500HD Crew 6.0 1999 Harley Davidson Electra Glide 1972 Chevrolet C-20 Custom Camper "Dump Truck" 1972 Chevrolet C-20 Suburban "Big Green" 1969 Chevrolet C-50 Wedge Hauler "Leonidis" 1966 C-10 2x4 short fleet 327 4 speed "Race Truck" 1952 Plymouth Cranbrook "Rican" (my grandfathers) 1931 Ford Model A Coupe "Black Beauty" 1930 Ford Model A truck "Club Cab" 4x4 Rottenwood Garage and Speed Shop.....where everything must be racy! *It's not just a hobby..It's a LIFESTYLE!!!* Thanks for nothing Barrett-Jackson You cant fix stupid or teach accountability! Time wasters, looky Lous and tire kickers are everywhere! Last edited by 72freak; 11-20-2010 at 12:12 AM.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.