77 The Black Truck "Ratbag"

[max 02]

Can’t do it! It stays.

7de7 is going instead.

Question is do I swap the 410 rear ends out of the 7de7 for the 373s out of Ratbag or just sell it the way it is and save the work?

 

[Bent77]

Just sell. You open that can of worms and cost yourself money

I hate to see either go, but you just can’t off a rat bag

 

[max 02]

Just sell. You open that can of worms and cost yourself money

I hate to see either go, but you just can’t off a rat bag

Fair enough Mark. Thanks!

The 7de7 means nothing to us...except it is a original k20 that you just don’t find around here anymore, But the body is shot, still fixable but a cab swap would be best for it.

 

[76zimmer]

did you ever find out what was going on with the loose 14bff in ratbag? seems like there was a bang and something felt loose to ya????

 

[max 02]

did you ever find out what was going on with the loose 14bff in ratbag? seems like there was a bang and something felt loose to ya????

Its been Ok ever since it locked up after our burn out...howls a bit under load, but It always has since I put it in. Dan has another 14 bolt I can have. But I don`t know what gears are in it yet it`s a c20 frame from 81up? It`s full float. 373`s have worked ok for me in the past with 35s and a 456 trans. I don't think I would go any bigger tire than that anyways.

 

[76zimmer]

Did they make 14bff's with higher gears than 3.73's?
I haven't seen one, lots of 4.10's and a few 4.56's and 3.73's.
I've never seen a 3.42 or higher in one.
I had a 3.73 one in my old 78 K20 plow truck. The rear axle housing was bent and it made a howling noise as well. I checked the fluid, it was black, so I changed it and plowed w it for a couple years. Tough pieces!

 

[78K30]

Did they make 14bff's with higher gears than 3.73's?
I haven't seen one, lots of 4.10's and a few 4.56's and 3.73's.
I've never seen a 3.42 or higher in one.
I had a 3.73 one in my old 78 K20 plow truck. The rear axle housing was bent and it made a howling noise as well. I checked the fluid, it was black, so I changed it and plowed w it for a couple years. Tough pieces!

Good question for @82355, pretty sure I've heard of an oddball 3.21 before. But he'd know for sure

 

[blazinzuk]

Did they make 14bff's with higher gears than 3.73's?
I haven't seen one, lots of 4.10's and a few 4.56's and 3.73's.
I've never seen a 3.42 or higher in one.
I had a 3.73 one in my old 78 K20 plow truck. The rear axle housing was bent and it made a howling noise as well. I checked the fluid, it was black, so I changed it and plowed w it for a couple years. Tough pieces!

My burb currently has 3.42s ( rpo sticker haven't verified) and a FF 14 bolt. It's weird the 2 wd 3/4 tons got a FF and 4x4s got a SF

 

[max 02]

Yeah Martin was talking about high geared 14s he`s had for sure.

 

[tRustyK5]

I've seen one 3.21 geared FF 14 bolt in person. Also from a burb...

 

[max 02]

Think I might have the 7de7 sold already!?
So we stole the wheels and tires off it for Ratbag.

 

[Bent77]

I’m glad you’re keeping the shatbag

 

[max 02]

Ratbag

• max 02
• Apr 9, 2018

Can you see what i forgot about?

Oops!

 

[Bent77]

Sounds good

 

[max 02]

Sounds good

Quadrajet long tubes and purple hornie`s!

 

[Bent77]

Quadrajet long tubes and purple hornie`s!

 

[Bowtie85]

The old mans 77 camper special came with 3:21s from the factory fwiw.

I think your making the right choice Dean

 

[LNielson]

My first pickup was a black ‘78 K10 with trim just like this. Makes me all nostalgic every timeI bump into this thread. Love everything about it.

 

[max 02]

View attachment 264860 My first pickup was a black ‘78 K10 with trim just like this. Makes me all nostalgic every timeI bump into this thread. Love everything about it.

Thanks!

 

[max 02]

Figured I should get a pic before the end of the month of me actually using it.
Me and Jesse @Bowtie85 did take it for a little rip down the road on the weekend too.