1978 GMC Sierra C35 "Project Second Life"

[tc4x4]

http://westernchassisinc.com/shop/73...e-1-ton-truck/

Ok here are spindals for 3'' drop, now how do I get another 3'' of drop or maybe squeeze 4'' drop. I have nine in the rear, and need 7 drop in the front. I'm pretty sure that I won't be able to run these tires.

What are the drop amount on these two different coils? Can't seem to find it.

http://www.summitracing.com/parts/ws...olet/model/c30

http://www.summitracing.com/parts/ws...olet/model/c30

[notallthere]

The top ones are a three inch drop and the bottom is a two inch drop. If you hit the application button it puts the amount of drop on one of the lines. Any more then that I would be getting the drop lower control arms as well from DJM. So spindles would be 3" springs would be 3" or 2" and the DJM drop arms are 2"

[SCOTI]

3" spindles
2-3" spring drop (1 cut coil or drop spring)
1.5 crossmember drop

[tc4x4]

So would 7 inches of drop be to much? That is the question? Also can someone educate me about cross member drops. I don't know anything about them. Pro's and con's.
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[SCOTI]

Originally Posted by tc4x4

So would 7 inches of drop be to much? That is the question? Also can someone educate me about cross member drops. I don't know anything about them. Pro's and con's.
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Is 7" of front drop "too much"? Everything depends on tire height & wheel dimensions once you exceed 4-5" of drop w/OE wheel wells.

The crossmember drop raises the pivot points of the upper & lower control arms in relation to the remainder of the frame. Depending on how you combine parts, you'll get more drop or more clearance under the crossmember @ certain drop heights....

http://67-72chevytrucks.com/vboard/s...ad.php?t=60649


Pros: If you can fab (weld), it's possible to build one in a day from a spare. Fabbing your own stuff = less expense.

Cons:
It requires some creativity on steering (upper a-arm interferes w/the steering shaft; crossmember lip & mounting hardware might require some clearancing depending on the parts combo).
It's a PITA to do w/the drivetrain installed.
It compromises the OE steering more than it already is (whether or not you would notice is subjective @ best).

[CrazyDave]

Glad to see ya didnt sell it that truck of yours is what gave me the idea to do
a heavier truck. Gotalot of ideas just havent got started yet.
Keep it going

[MTCK]

NV4500 if you like 3 pedals, 4l80e if not.
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[tc4x4]

Will the NV4500 tanny bolt up with my engine?

[old yelr]

Yes, it's the same bolt pattern.

[tc4x4]

How will it hold up to more power with engine mods.

I'm guessing it has overdrive?

Anyone have pictures of transmission cross members for the NV4500?

Anyone ever do this swap?

Will the shifter line up with the existing shifter hole in the floor?

[old yelr]

Yes, it has overdrive and it should take a good amount of power. Do a search for member DirtyLarry, his thread is called "NV4500 swap is underway", that should give you a good idea of what's involved, lot's of pictures and explanations. He's running a big block in his blazer so it would be a good comparison for you. The NV4500 started being used in 1991 in 1 ton crew cab square bodies and continued to be used through the 1990's with the next generation of trucks so the parts are out there.

[MTCK]

Here ya go. Lots of guys with built diesels run these, so they are pretty tough. Larry has a healthy 8.1 in front of his.

http://67-72chevytrucks.com/vboard/s...ghlight=Nv4500
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[79 blue monster]

we need an update please.....thanks!

[Chrisxeasy]

Enjoy the build! Have any updates??