This is LSX Matt doing the seats in his Tahoe.
I've done headliners in a 76 Chevy K20, 84 VW GTI, a 2004 GMC K2500HD, '98 Volvo Wagon, and several others. It takes a great deal of patience and care to do it but it's not impossible.
This is M539 Restorations replacing the headliner in a BMW E38 750il. He's fairly entertaining. His cloth is a wee bit more expensive than the napped cotton used in our GM trucks but it's the same job as any other cloth covered fiberboard headliner.
Pay attention to whether the headliner material is folded over the edges or tucked under the trim.
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1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8
RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.