Search results

the factory "brace" rod. "gmpartsgiant.com" has them for $33.00 . Part #14020856 . I tried to buy but got the message instead that the part was discontinued and/or backordered with no ETA.

So I had the TH400/NP208 Adapter replaced today on my '84 M1028.....see pics below.....no big surprise that Dexron III would be leaking through that large a crack! Per my transmission shop, there simply is an O-ring between the adapter and the TH400, and then a gasket between the adapter and...

Very helpful, thank you. The Yukon strap bolts seemed fine, but I'll see if I can order the GM straps.

Yep, but no big deal to unbolt drive shaft.......I'll take the truck to a transmission shop to have rear output seal replaced on the transmission (thinking that's the source of my leak), and then have the new adapter put in at that time to replace the current cracked adapter. Then when it all...

Neither do I! Original U-joint was sliding in the straps in the original yoke. I replaced the original U-joint in the driveshaft with the Spicer 1350 and then test fit in the original yoke and had like 1/16" movement back and forth in the yoke, so knew then I needed to replace the yoke -...

Thanks for your advice and assistance cucvrus......should have the replacement TH400/NP208 adapter installed in a couple weeks

Yukon strap part # is YY STR-007.......supposed to fit Spicer 1350 u-joint with 1.188" cap diameter

The Yukon yoke didn't have outside tabs like the OEM to retain the u-joint caps......on the Yukon the space for the caps is recessed into the yoke itself.......very form fitting to the exact width of the 3.625" width of the spicer 1350 u-joint

Spicer 1350 series u-joint, U5-799. I think OEM yoke was abused due to bent drive shift vibrating horribly in the yoke. I've since had the driveshaft re-tubed and balanced.

Yoke, bolts, and straps all Yukon parts

Verified part of the reason I had issues with the rear u-joint sliding in the straps/yoke and contributing to rear end vibration was the OEM yoke was 1/16" wider than the Yukon yoke I replaced it with today......I notice the new Yukon straps are not exactly formed yet to the new...

Thanks......found some good useful info via pirate4X4.com which indicates pinion nut size is 1.5" for my GM 10.5 " 14 bolt in my M1028. My question is how in the heck do you get the pinion nut off, and then back on......up to 300+ ft/lbs torque is crazy tight......not sure I could budge that on...

My M1028 stock rear must be 1 1/2" pinion yoke nut, 1 1/4" socket not even close to covering that big nut! Had a 36MM socket handy and it was just a bit small.

What size socket is required for nut removal on the pinion yoke?

I'm doing the same thing......had my driveshaft re-tubed, balanced, and both u joints replaced (Spicer part # U5-799, 1350 series) today......new u joint straps/bolts and pinion yoke ordered and due to arrive shortly. It was amazing once I had the driveshaft out of the truck and in clear light...

Totally possible......this '84 M1028 came from Ft Hood, Tx via Iron Planet, to an individual, and then to me via eBay......I test drove it at point of purchase, and knew it had a bad drive-line vibration of some sort at that point, and then drove it home ~ 50 miles, and have been addressing the...

Yes, caps are sliding in the straps.....I've not yet checked torque on strap bolts......they look fine.....but totally agree that replacing the yoke probably best left to skilled professional, which I am not!

Who knows? As noted also have a bad u-joint at the rear diff - slides in the yoke.

Yes, my u-joint at the rear diff will slide in the yoke......have a horrible vibration at 35-40 mph on the road.......so working my way from the front of the drivetrain to the rear.....presume best to replace rear yoke along with both rear u-joints? Or just replace u-joints and test fit whether...

Anybody ever see a crack in the adapter between the TH400 and the NP208?