It should be said out loud that ratios that are high numerically are considered low and conversely ratios that are low numerically are considered high.
3.08 = high
5.13 = low
@fnny6770 there is no set ratio with auto or manual transmissions, a 3/4 ton (or 1 ton) could have come with 3.73, 4.10 or 4.56(rare). What actual ratio came in a truck is dependent on the options ordered.
Imo, the mechanic using the term "plenum" for a small block Chevy shows he's not familiar with the motor. He might be good with late model cars that have 2 piece intake manifold set ups that have plenum gaskets but your 400 may be somewhat of a learning experience for him.
OR... he doesn't want...
Be sure the offset is correct for the truck. Lately, it seems like there are tons of people having issues with new wheels not fitting these older trucks correctly and most of the time it's related to offset.
Ok, it’s likely a true GM axle then.
Just to say it… the 70HD that’s in the diff webbing is the only useful info. The rear face of the passenger side axle tube will have a 6-7 digit number stamped in it, this is what you would use on the Dana site to decipher the axle.
I’d recheck the shoe...
I really appreciate you following through and letting me know but it looks like my appetite was bigger than my budget. I just won an arm wrestling match with my personal CFO for a carburetor so I’m tapped out at the moment, sadly I have to pass.
Thanks for letting me know!
Yes to both questions.
The Morryde kit was complete, the coolest part is a reinforcement bracket that goes between the roll bar foot and the corner of the tub.
Overall the bumpers are great. They have a few chips in the coating (very similar to bed liner) but that’s all and they are about 10...
@chevytech87 those are the exact same bumpers we have. The tire carrier was a pita! The “hinge” doesn’t use any bearings, it is a solid round stock post on the bumper and the carrier has a piece of split tubing that clamps snug on the post (you can see the pinch bolts in your pic). Periodic...
Then you should buy lottery tickets because there are thousands upon thousands of trucks (I’d bet literally hundreds of thousands) that cracked (stock and modified).
Ours has a 3” lift and 35’s, it looks good and she doesn’t wheel it anymore so it’s fine for driving around. I liked the tire to body gap better with 3” and 33’s but she likes the bigger tires. It rides great and there’s no weird steering or vibrations however the 35’s sucked a lot of power out...
Header flange thickness is directly related to gasket sealing success. Thin flanges can get warped easily, thick flanges seal better for longer.
My Sanderson’s have 3/8” flanges and seal great with Permatex Ultra Black.