Need assistance identifying 4x4 parts - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**SWB** · 08-10-2023, 07:59 AM

Hello all, I'm not new to 67-72 pickups, but am new to 4x4's. I recently purchased a 69 4x4 swb and need help Identifying front/rear differential's, Transmission (4-speed w/granny low), and transfer case. Mainly for the purpose of what fluids to put in them. Do I need lsd in the front/rearends. What is the best brand and weight for the transfer case and tranny.

As you can tell I have some cleaning to do, but I am excited.

Pic's attached and once I start de-greasing, I can get better pic's of whatever you need.

Thx

**kwmech** · 08-10-2023, 11:03 AM

Later model chevy 10 bolt front axle---probably converted to disc brake
rear axle is the stock 12 bolt.
trans could be either a SM 420 or 465. 465 will have a pto cover on both sides.
T-case is a rockwell 221

**SWB** · 08-10-2023, 04:17 PM

kwmech;9228718]Later model chevy 10 bolt front axle---probably converted to disc brake
rear axle is the stock 12 bolt.
trans could be either a SM 420 or 465. 465 will have a pto cover on both sides.
T-case is a rockwell 221[/QUOTE]

****Thanks for the info kwmech. Yes, it does have front disc. Once I degrease, I'm sure I'll find more markings/info.****

57taskforce · 08-12-2023, 12:34 AM

Looks like a 465/T225 to me, which it should be for ‘69 as long as nothing has been changed in that dept. A lot can happen in 50+ years.

As for fluids, 80w90 dinosaur gear oil in everything. I use the Napa brand because I get discount from work. Whatever brand you choose will likely be great, they really aren’t that picky. I don’t recommend synthetic though. You won’t need Posi additives unless you’ve got a posi. When you pull the covers (highly unlikely the front has one from the factory) you’ll be able to tell what you’ve got. The rear axle has a decent chance of being original to the truck I would say.

**kwmech** · 08-12-2023, 01:09 PM

Your steering shock is upside down at the diff by the way

**SWB** · 08-12-2023, 01:48 PM

Thanks for the info. Here are a couple more pics

The Tranny has this same plate on both sides and a number on the bottom.

And a direct rear shot or the transfer case

**SWB** · 08-14-2023, 03:49 PM

Quote:

Originally Posted by kwmech

Your steering shock is upside down at the diff by the way

Thanks, I flipped it over. Makes more sense now.

08-10-2023, 07:59 AM	#1
SWB Active Member Join Date: Nov 2008 Location: Jacksonville Illinois Posts: 180	Need assistance identifying 4x4 parts Hello all, I'm not new to 67-72 pickups, but am new to 4x4's. I recently purchased a 69 4x4 swb and need help Identifying front/rear differential's, Transmission (4-speed w/granny low), and transfer case. Mainly for the purpose of what fluids to put in them. Do I need lsd in the front/rearends. What is the best brand and weight for the transfer case and tranny. As you can tell I have some cleaning to do, but I am excited. Pic's attached and once I start de-greasing, I can get better pic's of whatever you need. Thx Attached Images __________________ K10 SWB. Orange/White 69 Ford F100 21K Actual Miles, 2nd owner in family since new *67 Chevy II RestoMod, Wilwood all around, Heights Pro G front sub,, Shockwave Air Ride, 383cu in etc..

08-10-2023, 11:03 AM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,641	Re: Need assistance identifying 4x4 parts Later model chevy 10 bolt front axle---probably converted to disc brake rear axle is the stock 12 bolt. trans could be either a SM 420 or 465. 465 will have a pto cover on both sides. T-case is a rockwell 221

08-10-2023, 04:17 PM	#3
SWB Active Member Join Date: Nov 2008 Location: Jacksonville Illinois Posts: 180	Re: Need assistance identifying 4x4 parts kwmech;9228718]Later model chevy 10 bolt front axle---probably converted to disc brake rear axle is the stock 12 bolt. trans could be either a SM 420 or 465. 465 will have a pto cover on both sides. T-case is a rockwell 221[/QUOTE] **Thanks for the info kwmech. Yes, it does have front disc. Once I degrease, I'm sure I'll find more markings/info.** __________________ K10 SWB. Orange/White 69 Ford F100 21K Actual Miles, 2nd owner in family since new *67 Chevy II RestoMod, Wilwood all around, Heights Pro G front sub,, Shockwave Air Ride, 383cu in etc..

08-12-2023, 12:34 AM	#4
57taskforce All about them K’s Join Date: Jun 2014 Location: Land of Entrapment Posts: 6,496	Re: Need assistance identifying 4x4 parts Looks like a 465/T225 to me, which it should be for ‘69 as long as nothing has been changed in that dept. A lot can happen in 50+ years. As for fluids, 80w90 dinosaur gear oil in everything. I use the Napa brand because I get discount from work. Whatever brand you choose will likely be great, they really aren’t that picky. I don’t recommend synthetic though. You won’t need Posi additives unless you’ve got a posi. When you pull the covers (highly unlikely the front has one from the factory) you’ll be able to tell what you’ve got. The rear axle has a decent chance of being original to the truck I would say. __________________ Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 35x12.5x20’s Last edited by 57taskforce; 08-12-2023 at 12:41 AM.

08-12-2023, 01:09 PM	#5
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,641	Re: Need assistance identifying 4x4 parts Your steering shock is upside down at the diff by the way

08-12-2023, 01:48 PM	#6
SWB Active Member Join Date: Nov 2008 Location: Jacksonville Illinois Posts: 180	Re: Need assistance identifying 4x4 parts Thanks for the info. Here are a couple more pics The Tranny has this same plate on both sides and a number on the bottom. And a direct rear shot or the transfer case Attached Images __________________ K10 SWB. Orange/White 69 Ford F100 21K Actual Miles, 2nd owner in family since new 67 Chevy II RestoMod, Wilwood all around, Heights Pro G front sub,, Shockwave Air Ride, 383cu in etc.. Last edited by SWB; 08-12-2023 at 08:48 PM.*



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