The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Stock 1970 Eaton clutch style Posi unit- Will it hold up?

Mike C · 06-13-2019, 07:58 AM

I wore won out and put clutches in it, so I have LOTS of miles on one. The 4 speed and 35” tires in my Jimmy were hard on 12 bolts. But as long as you can avoid wheel hop it will be good. I hit a wet spot in my Jimmy that caused tire spin and then a 3 hop wheel hop that broke the Eaton in 1/2 across the window and the spider gear cross shaft.

Impact loading/unloading in wheel hop is vicious.

06-13-2019, 07:58 AM	#5
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,709	Re: Stock 1970 Eaton clutch style Posi unit- Will it hold up? I wore won out and put clutches in it, so I have LOTS of miles on one. The 4 speed and 35” tires in my Jimmy were hard on 12 bolts. But as long as you can avoid wheel hop it will be good. I hit a wet spot in my Jimmy that caused tire spin and then a 3 hop wheel hop that broke the Eaton in 1/2 across the window and the spider gear cross shaft. Impact loading/unloading in wheel hop is vicious. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax