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All years Sure Grip differential, as well as 1964 and up open differentials, thrust block was the same size. 1963 and earlier open differential thrust block was a different size. Whether it was thicker up to 1963 for open, or the opposite, I'm finding conflicting info. I get what a thrust...

Long story short, looking for an extended cab, short bed, automatic, non-lifted truck. So, I bought the complete opposite, but, the bigger deal, it is rust/rot free. Rebuilt/bored 318, dana axles, all new blah blah blah. Only issue, NP435 trans is a little noisy in 2nd, a lot in 3rd, and quiet...

New gears just installed, bought on forum, opened and found this. Is this now garbage, and should be replaced? Doesn't appear to be damaged in shipping.

So I have a 742 Sure-Grip with 3.23s and a driveshaft with new spicer 7260 u-joints, which are solid. Original bb car with a 4 speed. Going to swap in a 742 Sure-Grip with 3.91s with a 7290 yoke. Combo u-joint would make it easy, but it's greasable, aka not solid, and I can't locate a solid...

I have a 67 Barracuda with a 742 3.23 Sure-Grip and 245/60R14 on 14x7 wheels on the rear. It's a healthy 383 with a tunnel ram and 4 speed. I'm converting it to a 5 speed, and have set of sbp 15x7 wheels. A friend suggested 255/60R15 tires with 3.73 gears would be a noticable improvement...

I have a 4 speed with a Hurst shifter, I tested the reverse lights and they work, but I cannot locate where the back-up switch is or how it is linked to the lights. There is probably some missing wiring. Any ideas? Thank you.